By probing the atmosphere of a mini-Neptune exoplanet, the James Webb Space Telescope has found that it formed much farther from its star than it is today, possibly explaining the origin of many other mini-Neptunes in the …
New simulations suggest binary star systems may be ideal for planet formation, and may produce more gas giants than single-star systems.
…
“Most planetary systems appear as ‘peas in a pod.’ This is not the case in the TOI-201 system.”
NASA is aiming for an early September 2026 launch of the Roman Space Telescope, a powerful new observatory that could transform astronomy with massive infrared sky surveys, huge data returns, and faster follow-up discoveries.
NASA is aiming for an early September 2026 launch of the Roman Space Telescope, a powerful new observatory that could transform astronomy with massive infrared sky surveys, huge data returns, and faster follow-up discoveries.

NASA’s Nancy Grace Roman Space Telescope team now is targeting as soon as early September 2026 for launch, ahead of the agency’s commitment to flight no later than May 2027. “Roman’s accelerated development is a true success story of what we can achieve when public investment, institutional expertise, and private enterprise come together to take […]
Using the James Webb Space Telescope, astronomers have investigated the giant exoplanet 29 Cygni b — work that could clarify the line between planets and stars.
…

Scientists have found that young stellar cousins of our Sun are calming down and dimming more quickly in their X-ray output than previously thought, according to a new study using NASA’s Chandra X-ray Observatory. A paper describing the results published Monday in The Astrophysical Journal. Unlike in the new movie “Project Hail Mary,” this quieting […]
A new catalog of potentially habitable exoplanets provides the framework for future observations in the search for alien life.
…
Astronomers have discovered an additional 100 new worlds in data collected by NASA’s exoplanet-hunting spacecraft TESS, thanks to an innovative AI program.
…