The countdown to NASA's Jupiter mission is on. This JPL engineer is helping it happen
Monday, 26 February 2024 15:57
Think of meticulously handcrafted objects and certain things come immediately to mind: fine art, exotic cars, luxury timepieces.
But Pasadena native Steve Barajas spends his days building a bespoke item that's on another level entirely: NASA's Europa Clipper.
The 13,000-pound behemoth, with a solar-array wingspan the length of a basketball court, is one of the agency's most ambitious efforts. It's on an October countdown to launch to Jupiter and its moon Europa, atop a SpaceX Falcon Heavy rocket, to find out if life exists in the deep ocean believed to lie beneath Europa's icy exterior.
The central body of the $5-billion Europa Clipper arrived in June 2022 at the Pasadena campus of NASA's Jet Propulsion Laboratory for the painstaking final assembly of components shipped from across the U.S. and Europe. That's where Barajas comes in.
Barajas, 35, is a mechanical engineer leading a team that, in coordination with other JPL specialists, installs crucial hardware for the ambitious mission. Barajas describes some high points with a parental flair: There's the magnetometer that could confirm whether an ocean exists beneath the Europa ice; the mass spectrometer that will analyze gases in Europa's atmosphere; the infrared cameras that will map the moon's surface composition, temperature and roughness; and the solar panels that will help power the spacecraft instruments.
DART impact might have reshaped Hera's target asteroid
Monday, 26 February 2024 15:00
ESA’s Hera spacecraft for planetary defence is being prepared for a journey to the distant asteroid moon Dimorphos orbiting around its parent body Didymos. One of the first features Hera will look for is the crater left on Dimorphos by its predecessor mission DART, which impacted the asteroid to deflect its orbit. Yet a new impact simulation study reported in Nature Astronomy today suggests no crater will be found. The DART impact is likely to have remodelled the entire body instead – a significant finding for both asteroid science and planetary defence.
Satellites are burning up in the upper atmosphere—what impact could this have on the Earth's climate?
Monday, 26 February 2024 14:54
Elon Musk's SpaceX has announced it will dispose of 100 Starlink satellites over the next six months, after it discovered a design flaw that may cause them to fail. Rather than risk posing a threat to other spacecraft, SpaceX will "de-orbit" these satellites to burn up in the atmosphere.
But atmospheric scientists are increasingly concerned that this sort of apparent fly-tipping by the space sector will cause further climate change down on Earth. One team recently, and unexpectedly, found potential ozone-depleting metals from spacecraft in the stratosphere, the atmospheric layer where the ozone layer is formed.
The relative "low earth orbit" where satellites monitoring Earth's ecosystems are found is increasingly congested—Starlink alone has more than 5,000 spacecraft in orbit. Clearing debris is therefore a priority for the space sector. Newly launched spacecraft must also be removed from orbit within 25 years (the US recently implemented a stricter five-year rule) either by moving upwards to a so-called "graveyard orbit" or down into the Earth's atmosphere.
Lower orbiting satellites are usually designed to use any remaining fuel and the pull of the Earth's gravity to re-enter the atmosphere.
Filmmaker on a mission wants to put astronaut Sally Ride statue in Central Florida
Monday, 26 February 2024 11:41
Kennedy Space Center Visitor Complex is home to one. Space Center Houston is another.
Lifelike bronze statues honoring some of the most famous astronauts in history have been finding homes in the space hubs and museums of America in recent years, and documentary filmmaker Steven Barber has had a major hand in each of their placements.
Now he wants to bring a statue commemorating Sally Ride, the first American woman in space, to Central Florida.
His top target is Orlando International Airport, which acknowledged the spirit behind the push, but noted any sort of approval would have to go through a process.
"While we appreciate Mr. Barber's passion in locating a monument at Orlando International to honor beloved astronaut Sally Ride, the preliminary discussions last year were just that—preliminary," according to a statement from the airport's public relations team. "Commissioned and major art pieces at Orlando International undergo a rigorous, pre-established selection process and must fall within our art program policies."
Barber was at Orlando's SpaceCom last month on his mission to drum up interest in the statue efforts but took time to revisit his first project, the Apollo 11 statue of astronauts Neil Armstrong, Buzz Aldrin and Michael Collins that was installed at KSC's Apollo/Saturn V Center Moon Tree Garden in 2019.
China’s 2024 space plans include 100 launches and moon sample return mission
Monday, 26 February 2024 11:05
ERS-2 buckles and bends during final farewell
Monday, 26 February 2024 08:20
US spaceship lying sideways after dramatic Moon touchdown
Saturday, 24 February 2024 21:24
America returns spaceship to the Moon, a private sector first
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'Live and Let Fly': Rocket Lab's inaugural NRO launch from Wallops, Virginia
Friday, 23 February 2024 19:54
SpaceX reportedly moving with inital Starshield contracts with DOD
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U.S. Space Force successfully concludes VICTUS NOX Tactically Responsive Space mission
Friday, 23 February 2024 19:54
NUVIEW Acquires AI Firm Astraea to transforming geospatial intelligence
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Stitch3D is powering a new wave of 3D data collaboration
Friday, 23 February 2024 19:54