What happens when a planet contains immense quantities of water but is far too hot for that water to remain liquid?

This month, we are continuing our profile series featuring our exceptional SETI AIR program Advisors.

November 20, 2025, Mountain View, CA -- The SETI Institute is pleased to open the call for applications for the 2026 Mino ...

What: Scientists discovered a bacterium (Hydrogenobacter) in Yellowstone that breathes both oxygen (aerobic) and elemental ...

From early fall 2023 to winter 2024, Unistellar and AFA observers collected nearly 6 months of photometric measurements of Hartley 2, which measure the comet’s brightness. Despite the crowded ...

NASA’s James Webb Space Telescope observed Herbig-Haro 49/50, an outflow from a nearby still-forming star, in high-resolution near- and mid-infrared light. The young star is off to the lower right ...

This artist’s concept shows the volatile red dwarf star TRAPPIST-1 and its four most closely orbiting planets, all of which have been observed by NASA’s James Webb Space Telescope (JWST). JWST has yet ...

This week, we present three dazzling astrophysical images from three different observatories, along with two pictures of Mars ...

New research suggests that Ariel, a moon of Uranus, might have once harbored an ocean about 170 km deep. Credit: NASA/JPL-Caltech/PSI/Mikayla Kelley/Peter Buhler ...