A giant impact 4.5 billion years ago could be the reason Jupiter’s core is stranger than astronomers expected. Astronomers thought that Jupiter began as a rocky and icy planetary embryo that later formed its massive gaseous envelope, drawing in hydrogen and helium from the solar nebula by virtue of its huge gravity. This would mean there was a relatively clear delineation between the solid core and the gas surrounding it.
SpaceX's billionaire founder and CEO teased the idea in 2015 during an appearance on "The Late Show with Stephen Colbert," explaining that vaporizing Mars' ice caps would be a good way to warm the planet enough for human colonists to live relatively comfortably. Musk floated the concept again last week via Twitter, initially saying simply "Nuke Mars!" and then "T-shirt soon."
Two NASA astronauts stepped outside the International Space Station Wednesday (Aug. 21) to install a new docking port for incoming commercial crew spacecraft during the fifth spacewalk from the station this year. Nick Hague and Andrew Morgan began their 6 hour and 32 minute spacewalk at 8:27 a.m. EDT (12:27 GMT), exiting from the U.S.-built Quest airlock after switching their spacesuits over to battery power.
Humanity's next giant leap could be enabled by next-gen nuclear tech, NASA Administrator Jim Bridenstine said. During the sixth meeting of the National Space Council (NSC) today (Aug. 20), the NASA chief lauded the potential of nuclear thermal propulsion, which would harness the heat thrown off by fission reactions to accelerate propellants such as hydrogen to tremendous speeds.
Starman and his deep-space ride have completed their first lap around the sun. The spacesuit-clad mannequin, who sits behind the wheel of SpaceX founder and CEO Elon Musk's red Tesla Roadster, launched on Feb. 6, 2018, on the inaugural flight of the huge Falcon Heavy rocket. The duo wrapped up their first solar orbit over the weekend, according to the tracking site whereisroadster.com.
The Hubble Space Telescope has been silently hovering above Earth for over 25 years, but it’s still returning spectacular images of the cosmos. That’s an amazing technological achievement. But it wasn’t always a smooth ride.
Earth's magnetic field seems steady and true--reliable enough to navigate by. Yet, largely hidden from daily life, the field drifts, waxes and wanes. The magnetic North Pole is currently careening toward Siberia, which recently forced the Global Positioning System that underlies modern navigation to update its software sooner than expected to account for the shift.
The moon just got a little more crowded. A horde of microscopic critters called tardigrades were passengers aboard the Israeli spacecraft Beresheet, which crashed into the lunar surface nearly four months ago. But because tardigrates can survive in extreme environments, it's likely these tiny astronauts are still alive.
“In CSE 143 and other computer science introductory classes, every time someone always asks a question -- it’s almost always a guy,” Ketaki Deuskar, a rising sophomore in the Allen School of Computer Science, said. By college, many successful women are hit with severe bouts of imposter syndrome. Imposter syndrome is a repercussion of the unequal society we live in.
Of the 12 people who have walked on the moon, zero have been women. NASA's Artemis program aims to change that by landing the first woman on the moon. "I have a daughter. She is 11 years old, and I want her to see herself in the same position that our current, very diverse astronaut corps currently sees itself, having the opportunity to go to the moon," NASA Administrator Jim Bridenstine said in an agency town hall May 14.