Space

Rapidly growing swarms of satellites around Earth are no longer just a nuisance for ground-based observatories — the reflections they cause are now intruding on space-based telescopes as well, according to new research. Roughly 15,000 satellites currently circle the planet in vast internet-providing fleets, more than half of them belonging to SpaceX’s Starlink network, which has more than…

Astronomers have used the James Webb Space Telescope (JWST) to discover that a distant “hot Jupiter” planet has two staggeringly long tails composed of helium that currently defy explanation. The observations represent the first study of gases leaking from a planet beyond the solar system during one of its complete orbits, and help paint the most complete picture of atmospheric escape…

NASA just released striking new video and audio that reveal the sounds of dust storms on Mars crackling with tiny lightning-like sparks. The footage, which NASA released on Dec. 3, was captured by the Perseverance rover inside Jezero Crater on Sept. 6, as Martian dust devils swept across the surface. Meanwhile, the rover’s SuperCam microphone also picked up the sounds of faint crackles and…

Two Russian cosmonauts and an American astronaut are safely back on Earth after spending eight months aboard the International Space Station. Soyuz MS-27 crewmates Sergey Ryzhikov and Alexey Zubritsky of the Russian federal space corporation Roscosmos, along with Jonny Kim of NASA, landed on the cold, snow-flurry-covered steppe of Kazakhstan on Tuesday (Dec. 9). The spacecraft, descending under a…