SpaceX Crew-12 will Study How Microgravity Affects the Human Body

NASA’s SpaceX Crew-12 mission is preparing to launch for a long-duration science mission aboard the International Space Station. During the mission, select crew members will participate in human health studies focused on understanding how astronauts’ bodies adapt to the low-gravity environment of space, including a new study examining subtle changes in blood flow.

A giant star is changing before our eyes and astronomers are watching in real time

For decades, astronomers have been watching WOH G64, an enormous heavyweight star in the Large Magellanic Cloud, a galaxy visible with the naked eye from the Southern Hemisphere. This star is more than 1,500 times larger than the sun and emitting over 100,000 times more energy. For a long time, red supergiant WOH G64 looked like a star steadily reaching the end of its life, shedding material and swelling in size as it began to run out of fuel.

Webb unveils nature of distant ultraviolet-luminous galaxy CEERS2-588

Astronomers from the University of Tokyo in Japan and elsewhere have employed the James Webb Space Telescope (JWST) to observe a distant ultraviolet-luminous galaxy known as CEERS2-588. Results of the observational campaign, published January 29 on the arXiv preprint server, shed more light on the nature and properties of this galaxy.

Pulsar timing hints at a nearby dark matter ‘sub-halo’

A group of US astronomers may have uncovered the first evidence for a dark matter sub-halo lurking just beyond our stellar neighborhood. Reporting their findings in Physical Review Letters, a team led by Sukanya Chakrabarti at the University of Alabama in Huntsville suggests that an unseen clump of dark matter could be subtly tugging on nearby pulsars. If confirmed, the result could shed new light on the elusive nature of dark matter and how it is distributed throughout our galaxy.

Saturday Citations: Imaginative bonobos; cannabis brain benefits; sneaky beetles

This week in science news: Nitrous oxide, a potent greenhouse gas, may break down more rapidly in the atmosphere than previously thought due to climate change. A new, experimental pill dramatically reduces bad cholesterol. And physicists believe they detected an exploding black hole, representing scary new behavior from what we once thought was a more limited arsenal of gravity-based terror and awe.

Live coverage: SpaceX to launch return to flight Falcon 9 mission following brief stand down

File: A SpaceX Falcon 9 rocket stands ready to launch the Starlink 7-14 mission from Vandenberg Space Force Base. Image: SpaceX SpaceX is set to launch its Falcon 9 rocket on a return to flight mission following a brief stand down period lasting less than a week. The Starlink 17-33 mission will add 25 Starlink satellites to the company’s megaconstellation in low Earth orbit. There a more than 9,600 satellites currently in orbit, according to Continue ReadingLive coverage: SpaceX to launch return to flight Falcon 9 mission following brief stand down