Graphics

Dell Alienware Area-51m Packs Desktop Hardware Into Powerful, Upgradeable Laptop (hothardware.com) 89

MojoKid writes: Dell just unveiled its latest desktop-replacement class notebook, the new Alienware Area-51m. Unlike most other notebooks, however, the Area-51m is actually packing an array of desktop-class hardware. Intel's Core i9-9900K is an available CPU option, for example, and NVIDIA's GeForce RTX 2080 will be offered in the machine as well. The Area-51m also supports up to 64GB of RAM via quad SO-DIMM slots, multiple NVMe M.2 solid state drives and a SATA drive can be installed, and numerous 17.3" display options will be available as well, including a 144Hz IPS G-SYNC model. The Alienware Area-51m is also upgradeable, thanks to the use of socketed desktop processors and a custom GPU module. The machine will be available starting January 29th in two color options, Lunar Light and Dark Side of the Moon.
Space

NASA's Photos of Ultima Thule Suggest Long-Ago Moons (jhuapl.edu) 38

"Scientists from NASA's New Horizons mission released the first detailed images of the most distant object ever explored," reports the Johns Hopkins Applied Physics Lab (which is operating the spacecraft). "Its remarkable appearance, unlike anything we've seen before, illuminates the processes that built the planets four and a half billion years ago."

Tablizer (Slashdot reader #95,088) shares their report: "The new images -- taken from as close as 17,000 miles (27,000 kilometers) on approach -- revealed Ultima Thule as a "contact binary," consisting of two connected spheres. End to end, the world measures 19 miles (31 kilometers) in length. The team has dubbed the larger sphere "Ultima" (12 miles/19 kilometers across) and the smaller sphere "Thule" (9 miles/14 kilometers across). The team says that the two spheres likely joined as early as 99 percent of the way back to the formation of the solar system, colliding no faster than two cars in a fender-bender...

Data from the New Year's Day flyby will continue to arrive over the next weeks and months, with much higher resolution images yet to come.

Space.com reports that astronomers are now hunting for moons near Ultima Thule. At a Thursday news conference, a New Horizons co-investigator from the SETI Institute explained that the rotation of Ultima Thule appears to have been slowed by orbiting moons, and the discovery of "Any moon at all, on any orbit at all, will tell us the mass and the density to pretty decent usable precision." Although it's also possible that the moons of Ultima Thule have since drifted away.

Space.com adds that the New Horizons spacecraft "has enough fuel and power, and is in good enough health, to potentially fly past a third object, if NASA grants another mission extension."
Moon

Super Blood Wolf Moon Eclipse Is Coming Later This Month (usatoday.com) 66

The "super blood wolf moon eclipse" is coming to a sky near you later this month. "The total lunar eclipse will start late on Sunday, Jan. 20 and finish early on Monday, Jan. 21," reports USA Today. Slashdot reader Zorro shares the report: Total lunar eclipse: A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth, according to NASA. When this happens, Earth blocks the sunlight that normally reaches the moon. Instead of that sunlight hitting the moon's surface, Earth's shadow falls on it. Starting at 9:36 p.m. EST Jan. 20, skywatchers will notice a "little notch is taken out of the moon," according to Brian Murphy, director of Indiana's Holcomb Observatory & Planetarium and Butler University professor. At 10:34 p.m., it moves into a partial eclipse, and starting at 11:41 p.m., the full eclipse begins; a maximum eclipse occurs at 12:12 a.m. Jan. 21. The total eclipse ends at 12:44 a.m.

Supermoon: A supermoon occurs when the full moon is at the closest point of its orbit to the Earth (perigee). That makes the moon look extra-close and extra bright -- up to 14% bigger and 30% brighter than a full moon at its farthest point from Earth, known as the apogee, NASA said. This is the first of three supermoons in 2019. The others will be on Feb. 19 and March 21. Of these, the Feb. 19 full moon will be the closest and largest full supermoon of 2019.

"Blood" moon: That is just the reddish color the moon will appear during the total lunar eclipse.

"Wolf" moon: According to the Old Farmer's Almanac, Native Americans called the January full moon the "wolf" moon because it appeared when wolves howled in hunger outside the villages.

Moon

China Successfully Lands Spacecraft On Far Side of the Moon (cnbc.com) 212

State news agency Xinhua reports that China has successfully landed its Chang'e 4 spacecraft on the far side of the moon on Thursday morning, Beijing time, becoming the first country in history to touch the lunar surface unseen by those on Earth. CNBC reports: The Chang'e 4 mission launched in early December. It took the spacecraft three days to travel to the moon, where it spent the last few weeks in orbit preparing for touch down on the Von Karman crater. The crater is a relatively flat spot on the moon's far side. "China's Chang'e-4 probe softlands on Moon's far side," the state news agency tweeted on Thursday. Citing the China National Space Administration, Xinhua said the space probe, made up of a lander and a rover, "landed at the preselected landing area on the far side of the moon at 10:26 a.m. Beijing Time."

Landing on the far side is a technical challenge, as there is no direct way to communicate with the spacecraft as it nears its target. China put a relay satellite in orbit around the moon in May to overcome that communication challenge. The far side of the moon has been seen and mapped before, even by astronauts of the Apollo missions. But the successful landing of Chang'e 4 represents the first time any spacecraft has touched down on the moon's far side.

Moon

China 'Lifts Mysterious Veil' by Landing Probe on Far Side of the Moon (reuters.com) 47

A Chinese space probe successfully touched down on the far side of the moon on Thursday, China's space agency said, hailing the event as a historic first and a major achievement for the country's space program. From a report: The Chang'e-4 lunar probe, launched in December, made the "soft landing" at 0226 GMT and transmitted the first-ever "close range" image of the far side of the moon, the China National Space Administration said. The moon is tidally locked to Earth, rotating at the same rate as it orbits our planet, so most of the far side -- or "dark side" -- is never visible to us. Previous spacecraft have seen the far side, but none has landed on it. The landing "lifted the mysterious veil" of the far side of the moon and "opened a new chapter in human lunar exploration", the agency said in a statement on its website, which included a wide-angle color picture of a crater from the moon's surface.
NASA

Nancy Grace Roman, 'Mother Of Hubble' Space Telescope, Has Died, At Age 93 (npr.org) 65

Russell Lewis, writing for NPR: When Nancy Grace Roman was a child, her favorite object to draw was the moon. Her mother used to take her on walks under the nighttime sky and show her constellations, or point out the colorful swirls of the aurora. Roman loved to look up at the stars and imagine. Eventually, her passion for stargazing blossomed into a career as a renowned astronomer. Roman was one of the first female executives at NASA, where she served as the agency's first chief of astronomy. Known as the "Mother of Hubble," for her role in making the Hubble Space Telescope a reality, Roman worked at NASA for nearly two decades. She died on Dec. 25 at the age of 93.

Roman fought to earn her place in a field dominated by men, paving the path for future female scientists. She was born in Nashville, Tenn. in 1925 and organized an astronomy club in fifth grade. She attended high school in Baltimore, where she requested to take a second year of algebra instead of a fifth year of Latin. When she made the appeal, she recounted in a 2017 interview with NPR that the guidance counselor wasn't supportive of her dream to become a scientist.

Her efforts helped lead to the creation of the Hubble Space Telescope. In her role at NASA, Roman developed and planned the Hubble Space Telescope, which is famous for its stunning images of space. Because of the Hubble Space Telescope, scientists have been able to collect data and gain insight into even the most remote galaxies of the universe. The success of the project led to future space telescopes. Roman's work, however, reached far beyond just the Hubble Space Telescope. In an interview with NASA, Roman once stated that one of the highlights of her career was when she discovered the first indication that common stars were not all the same age.

Earth

50 Years Ago Today, Apollo 8 Changed Humanity's Vision of Earth Forever (theguardian.com) 92

No one told them to look for the Earth. It was Christmas Eve 1968 and the first manned mission to the moon had reached its destination. As Apollo 8 slipped into lunar orbit the crew prepared to read passages of Genesis for a TV broadcast to the world. But as the command module came around on its fourth lap, there it was visible through the window -- a bright blue and white bauble suspended in the black above the relentless grey of the moon. The Guardian: Before that moment 50 years ago, no one had seen an earthrise. The sight sent Bill Anders, the mission photographer, scrambling for his camera. He slapped a 70mm colour roll into the Hasselblad, set the focus to infinity, and started shooting though the telephoto lens. What he captured became one of the most influential images in history. A driving force of the environmental movement, the picture, which became known as Earthrise, showed the world as a singular, fragile, oasis.

On previous laps Anders had snapped the far side of the moon for the geologists and the near side of it for Apollo's landing site planners. "It didn't take long for the moon to become boring. It was like dirty beach sand," Anders told the Guardian. "Then we suddenly saw this object called Earth. It was the only colour in the universe." Apollo 8 launched from the Kennedy Space Centre in Florida on 21 December 1968. The enormous Saturn V rocket, more than 110 metres tall, had flown only twice before and never with a crew. But on that day the rocket performed. Tucked inside the command module, Anders, Frank Borman and James Lovell looped the planet twice before the third stage blasted them onwards to the moon. They arrived nearly three days later, completed 10 lunar orbits, and headed home for a splashdown in the north Pacific.

Earthrise did not have an immediate impact. Its philosophical significance sunk in over years, after Nasa put it on a stamp, and Time and Life magazine highlighted it as an era-defining image. "It gained this iconic status," Anders said. "People realised that we lived on this fragile planet and that we needed to take care of it." The shot did more than boost the environmental movement. Even Anders, who calls himself "an arch cold war warrior," felt it held a message for humanity. "This is the only home we have and yet we're busy shooting at each other, threatening nuclear war, and wearing suicide vests," he said. "It amazes me."
Further reading: Wired.
Mars

'Sending Astronauts To Mars Would be Stupid' (bbc.com) 473

One of the first men to orbit the Moon has told BBC Radio 5 Live that it's "stupid" to plan human missions to Mars. Bill Anders, lunar module pilot of Apollo 8, the first human spaceflight to leave Earth's orbit, said sending crews to Mars was "almost ridiculous". From a report: NASA is currently planning new human missions to the Moon. It wants to learn the skills and develop the technology to enable a future human landing on Mars. NASA was approached for a response to Anders' comments, but hasn't responded.

Anders, 85, said he's a "big supporter" of the "remarkable" unmanned programmes, "mainly because they're much cheaper". But he says the public support simply isn't there to fund vastly more expensive human missions. "What's the imperative? What's pushing us to go to Mars?" he said, adding "I don't think the public is that interested". Meanwhile, robotic probes are still exploring Mars. Last month, the InSight lander, which will sample the planet's interior, successfully touched down at Elysium Planitia.
Further reading: Bill Nye: We Are Not Going To Live on Mars, Let Alone Turn It Into Earth.
Space

SpaceX Launches Air Force's Most Powerful GPS Satellite Ever Built (cbsnews.com) 48

A SpaceX Falcon 9 rocket roared to life and streaked away from Cape Canaveral early Sunday carrying the first in a powerful new generation of GPS navigation satellites into orbit. It was the California rocket builder's 21st launch this year and its first Pentagon-sanctioned national security mission. From a report: Propelled by 1.2 million pounds of thrust from its nine first stage engines, the 229-foot-tall rocket lifted off at 8:51 a.m. EST (GMT-5), climbing straight away from launch complex 40 at the Cape Canaveral Air Force Station. It was the 20th major rocket launch from Florida this year, the busiest pace since 1998. The launching came five days late because of a last-minute problem with first stage propellant temperatures Tuesday and stormy weather Thursday. High winds forced another 24-hour delay Saturday, but conditions were ideal Sunday and the rocket put on a spectacular show as it raced away to the northeast through a cloudless sky.

Vice President Mike Pence, chairman of the newly reconstituted National Space Council, was on hand for Tuesday's initial launch try but flew back to Washington after touring SpaceX facilities at the Kennedy Space Center. "The most important thing is that we get that rocket up safely and securely and it achieves its mission," Pence told spaceport workers. "I know this bird is going to fly and when it flies, it's going to make a difference for the security and prosperity of the American people." Pence has taken an active role in directing the Trump administration's revised national space policy, calling for establishment of a military "Space Force," increased commercial development in low-Earth orbit and continued NASA development of a huge new rocket and spacecraft to carry astronauts back to the moon.

Space

India Launches Hefty Communications Satellite Into Orbit to Cap Busy 2018 (space.com) 48

India successfully squeezed a seventh launch into the year Wednesday, using an upgraded version of the country's Geosynchronous Satellite Launch Vehicle to place a massive communications satellite into orbit for the Indian Air Force. From a report: That communications satellite, called the GSAT-7A, weighs nearly 5,000 lbs. (2250 kilograms) and will allow the Indian Air Force to manage all of its space communications itself, rather than paying for satellite services. "This mission, both in the launch vehicle as well as the satellite, there are so many firsts," K. Sivan, chair of the Indian Space Research Organisation (ISRO), said. [...] Today's was India's last scheduled launch for 2018, although the country is eyeing two launches in January 2019, including of its second moon mission, Chandrayaan 2.
Space

A Bright Green 'Christmas Comet' Will Fly the Closest To Earth In Centuries 111

On Sunday night, a comet that orbits between Jupiter and the sun will make its closest approach to Earth in centuries. According to Tony Farnham, a research scientist in the astronomy department at the University of Maryland, the comet will appear as a bright, fuzzy ball with a greenish-gray tint. "You've got a one-kilometer solid nuclear in the middle, and gas is going out hundreds of thousands of miles," says Tony. The comet glows green because the gases emit light in green wavelengths. The New York Times reports: The ball of gas and dust, sometimes referred to as the "Christmas comet," was named 46P/Wirtanen, after the astronomer Carl Wirtanen, who discovered it in 1948. It orbits the sun once every 5.4 years, passing by Earth approximately every 11 years, but its distance varies and it is rarely this close. As the comet passes by, it will be 30 times farther from Earth than the moon, NASA said. The proximity of 46P/Wirtanen provides an opportunity to research the tail of the comet and see farther into the nucleus.

The comet is visible now but it will shine even brighter on Sunday as it reaches its closest approach, 7.1 million miles from Earth. That may sound really far, but it is among the 10 closest approaches by a comet in 70 years, NASA said. Only a few of those could be seen with the naked eye. Don't worry if you miss the comet on Sunday. It should be just as visible for a week or two because its appearance will change gradually. After it moves on, it won't be this close to Earth again for hundreds, if not thousands, of years. Online charts can help pinpoint its location.
China

China's Chang'e-4 Launches On Mission To the Moon's Far Side (nytimes.com) 41

An anonymous reader quotes a report from The New York Times: China is aiming to go where no one has gone before: the far side of the moon. A rocket carrying the Chang'e-4 lunar lander blasted off at about 2:23 a.m. local time on Saturday from Xichang Satellite Launch Center in southern China. (In the United States, it was still midday Friday). Chinese authorities did not broadcast the launch, but an unofficial live stream recorded near the site showed the rocket rise from the launch pad until its flames looked like a bright star in the area's dark skies. Nearly one hour later, Xinhua, China's state-run news agency reported that Chang'e-4 had successfully launched. Exactly when it will set down at its destination has not yet been announced -- possibly in early January -- but Chang'e-4 will provide the first close-up look at a part of the moon that is eternally out of view from Earth. The rover will attempt to land in the 110-mile-wide Von Karman crater. The crater is within an area known as the South Pole-Aitken basin, a gigantic, 1,600-mile wide crater at the bottom of the moon, which has a mineralogy distinct from other locations. "That may reflect materials from the inside of the moon that were brought up by the impact that created the basin," reports The New York Times.

The suite of instruments on the rover and the lander -- cameras, ground-penetrating radar and spectrometers -- "will probe the structure of the rocks beneath the spacecraft, study the effects of the solar wind striking the lunar surface," the report says. "Chang'e-4 will also test the ability of making radio astronomy observations from the far side of the moon, without the effects of noise and interference from Earth." It will also see if plant seeds will germinate and silkworm eggs will hatch in the moon's low gravity.
China

China Set To Launch First-Ever Spacecraft to the Far Side of the Moon, Will Attempt To Grow Plant There (scientificamerican.com) 138

AmiMoJo writes: Later this week, China plans to launch its Chang'e-4 spacecraft to the far side of the lunar surface. The aim is to land a rover on the dark side of the moon for the first time. Blocked from direct communication with the Earth, the lander and rover will depend on China's Queqiao communication satellite launched in May. If the landing is successful, the mission's main job will be to investigate this side of the lunar surface, which is peppered with many small craters. The lander will also conduct the first radio astronomy experiments from the far side of the Moon -- and the first investigations to see whether plants will grow in the low-gravity lunar environment.

The ultimate goal of the China National Space Administration (CNSA) is to create a Moon base for future human exploration there, although it has not announced when that might happen. Chang'e-4 will be the country's second craft to 'soft' land on the lunar surface, following Chang'e-3's touchdown in 2013.

NASA

NASA Is Outsourcing Its Next Moon Lander To a Private Company (pressherald.com) 83

NASA Administrator Jim Bridenstine announced Thursday that nine U.S. companies will compete to deliver experiments to the lunar surface. The space agency will buy the service and let private industry work out the details on getting there, he said. The Press Herald reports: The goal is to get small science and technology experiments to the surface of the moon as soon as possible. The first flight could be next year; 2019 marks the 50th anniversary of the first manned moon landing. "We're going at high speed," said Thomas Zurbuchen, head of NASA's science mission directorate, which will lead the effort. NASA officials said the research will help get astronauts back to the moon more quickly and keep them safer once they're there. The initial deliveries likely will include radiation monitors, as well as laser reflectors for gravity and other types of measurements, Zurbuchen said. Bridenstine said it will be up to the companies to arrange their own rocket rides. NASA will be one of multiple customers using these lunar services.
Space

Elon Musk Renames Big Falcon Rocket To 'Starship' (theverge.com) 124

On Twitter, SpaceX CEO Elon Musk said that the transportation portion of the company's Big Falcon Spaceship (BFS), will now be called Starship, while the booster portion will be called Super Heavy. The Verge reports: Plans for the 387-foot Big Falcon Rocket were officially revealed back in September. Eventually, the company hopes that it will replace the company's existing Falcon 9, Falcon Heavy, and Dragon rockets. The craft is currently being developed at the Port of Los Angeles, at an expected cost of $5 billion and will be capable of taking up to 100 tons of cargo or 100 passengers as far as Mars.

SpaceX president Gwynne Shotwell said the company hopes to start doing uncrewed launch tests of the new rocket in late 2019. If all goes well, Musk believes that this could be followed by an initial uncrewed flight to Mars in 2022 with a crewed flight taking place as early as 2024. A mission to fly around the moon with a private passenger on board is planned for 2023. However, given that the Falcon Heavy took nearly twice as long to complete as expected, and that only five percent of SpaceX's resources are currently spent on the Starship, it's best to view these plans as an aspiration.

Mars

Hawaii's Mars Simulations Are Canceled (theatlantic.com) 87

The dome where crew members practiced red-planet missions will now be converted to a simulated moon base. Excerpt from a report: For the last five years, a small Mars colony thrived in Hawaii, many miles away from civilization. The Hawaii Space Exploration Analog and Simulation, or HI-SEAS, was carried out in a small white dome nestled along the slope of a massive volcano called Mauna Loa. The habitat usually housed six people at a time, for as long as eight months. They prepared freeze-dried meals, took 30-second showers to conserve water, and wore space suits every time they left the dome. To replicate the communication gap between Earth and Mars, they waited 20 minutes for their emails to reach their family members, and another 20 to hear back. Sometimes, as they drifted off to sleep, with nothing but silence in their ears, they really believed they were on Mars.

In February of this year, something went wrong. The latest and sixth mission was just four days in when one of the crew members was carried out on a stretcher and taken to a hospital, an Atlantic investigation revealed in June. There had been a power outage in the habitat, and some troubleshooting ended with one of the residents sustaining an electric shock. The rest of the crew was evacuated, too. There was some discussion of returning -- the injured person was treated and released in the same day -- but another crew member felt the conditions weren't safe enough and decided to withdraw. The Mars simulation couldn't continue with a crew as small as three, and the entire program was put on hold. [...]

NASA

NASA 'Will Eventually' Retire Its New Mega-Rocket if SpaceX, Blue Origin Can Safely Launch Their Own Powerful Rockets (businessinsider.com) 113

NASA is building a giant rocket ship to return astronauts to the moon and, later on, ferry the first crews to and from Mars. But agency leaders are already contemplating the retirement of the Space Launch System (SLS), as the towering and yet-to-fly government rocket is called, and the Orion space capsule that'll ride on top. From a report: NASA is anticipating the emergence of two reusable and presumably more affordable mega-rockets that private aerospace companies are creating. Those systems are the Big Falcon Rocket (BFR), which is being built by Elon Musk's SpaceX; and the New Glenn, a launcher being built by Jeff Bezos' Blue Origin. "I think our view is that if those commercial capabilities come online, we will eventually retire the government system, and just move to a buying launch capacity on those [rockets]," Stephen Jurczyk, NASA's associate administrator, told Business Insider at The Economist Space Summit on November 1. However, NASA may soon find itself in a strange position, since at least one of the two company's systems may beat SLS back to the moon -- and possibly be the first to reach Mars.
ISS

Antares Successfully Launches ISS Re-Supply Cargo Ship (nasaspaceflight.com) 40

Long-time Slashdot reader PuddleBoy quotes NasaSpaceflight.com: Northrop Grumman Innovation System's Antares rocket has launched the NG-10 Cygnus, named the S.S. John Young, on its way to the International Space Station on Saturday morning from the Mid-Atlantic Regional Spaceport in Virginia... With its second and final flight of 2018 upon it, Antares lofted the S.S. John Young Cygnus up to the International Space Station with 3,268 kg (7,205 lb) of pressurized cargo and 82 kg (181 lb) of unpressurized cargo....

Cygnus is undertaking a two phase to the International Space Station, aligning for close approach to the orbital lab for grapple on Monday morning, 19 November -- just over 48 hours after launch. Expedition 57 Flight Engineer Serena Aunon-Chancellor will grapple Cygnus with the Station robotic arm, known as the SSRMS or the Space Station Remote Manipulator System).

John Young was a pioneering astronaut who died in January at the age of 87 -- 36 years after he became the ninth person to walk on the moon, driving the Lunar Roving Vehicle. He was also the commander on the very first Space Shuttle flight in 1981.

"We're really proud to name it after John Young," said one executive at Northrop Grumman Innovation Systems, "and we'll work hard to do him proud."
Earth

A New Method To Produce Steel Could Cut 5 Percent of CO2 Emissions (technologyreview.com) 121

An anonymous reader shares an excerpt from a report via MIT Technology Review: A lumpy disc of dark-gray steel covers a bench in the lab space of Boston Metal, an MIT spinout located a half-hour north of its namesake city. It's the company's first batch of the high-strength alloy, created using a novel approach to metal processing. Instead of the blast furnace employed in steelmaking for centuries, Boston Metal has developed something closer to a battery. Specifically, it's what's known as an electrolytic cell, which uses electricity -- rather than carbon -- to process raw iron ore.

If the technology works at scale as cheaply as the founders hope, it could offer a clear path to cutting greenhouse-gas emissions from one of the hardest-to-clean sectors of the global economy, and the single biggest industrial source of climate pollution. After working on the idea for the last six years, the nine-person company is shifting into its next phase. If it closes a pending funding round, the startup plans to build a large demonstration facility and develop an industrial-scale cell for steel production.
The process to produce steel results in around 1.7 gigatons of carbon dioxide being pumped into the atmosphere annually, "adding up to around 5 percent of global carbon dioxide emissions, according to a recent paper in Science," MIT Technology Review reports.

The electrolytic cell that Boston Metal developed was realized after it was proposed to be used to extract oxygen from the moon's surface. "The by-product was molten metal," the report says. "But producing something like steel would require an anode made from cheap materials that wouldn't corrode under high temperatures or readily react with iron oxide. In 2013, [MIT chemist] Sadoway and MIT metallurgy researcher Antoine Allanore published a paper in Nature concluding that anodes made from chromium-based alloys might check all those boxes."
Mars

How NASA Will Use Robots To Create Rocket Fuel From Martian Soil (ieee.org) 79

Engineers are building a prototype of a robotic factory that will create water, oxygen, and fuel on the surface of Mars. From a report: The year is 2038. After 18 months living and working on the surface of Mars, a crew of six explorers boards a deep-space transport rocket and leaves for Earth. No humans are staying behind, but work goes on without them: Autonomous robots will keep running a mining and chemical-synthesis plant they'd started years before this first crewed mission ever set foot on the planet. The plant produces water, oxygen, and rocket fuel using local resources, and it will methodically build up all the necessary supplies for the next Mars mission, set to arrive in another two years. This robot factory isn't science fiction: It's being developed jointly by multiple teams across NASA. One of them is the Swamp Works Lab at NASA's John F. Kennedy Space Center, in Florida, where I am a team lead. Officially, it's known as an in situ resource utilization (ISRU) system, but we like to call it a dust-to-thrust factory, because it turns simple dust into rocket fuel. This technology will one day allow humans to live and work on Mars -- and return to Earth to tell the story.

But why synthesize stuff on Mars instead of just shipping it there from Earth? NASA invokes the "gear-ratio problem." By some estimates, to ship a single kilogram of fuel from Earth to Mars, today's rockets need to burn 225 kilograms of fuel in transit -- launching into low Earth orbit, shooting off toward Mars, slowing down to get into Mars orbit, and finally slowing to a safe landing on the surface of Mars. We'd start with 226 kg and end with 1 kg, which makes for a 226:1 gear ratio. And the ratio stays the same no matter what we ship. We would need 225 tons of fuel to send a ton of water, a ton of oxygen, or a ton of machinery. The only way to get around that harsh arithmetic is by making our water, oxygen, and fuel on-site. Different research and engineering groups at NASA have been working on different parts of this problem. More recently, our Swamp Works team began integrating many separate working modules in order to demonstrate the entire closed-loop system. It's still just a prototype, but it shows all the pieces that are necessary to make our dust-to-thrust factory a reality. And although the long-term plan is going to Mars, as an intermediate step NASA is focusing its attention on the moon. Most of the equipment will be tried out and fine-tuned on the lunar surface first, helping to reduce the risk over sending it all straight to Mars.

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