Half a century after the first successful Mars landing, Viking's greatest legacy may be the questions it taught us to ask.

Throughout June 2026, SETI Institute scientists, affiliates, and collaborators contributed to discussions spanning ...

Now, an international team of researchers reports in the journal Science Advances that a short time later, a more than ...

From a marathon milestone on Mars to a sky filled with satellite trails above Chile’s deserts, this week’s collection ...

Two SETI Institute planetary scientists now have asteroids bearing their names, an honor! The International Astronomical ...

Our First Quarter 2026 Activity Report captures the discoveries, collaborations, educational initiatives, and public outreach ...

Enjoy fifty years of planetary exploration, from a classic Viking view of Mars’ immense Argyre Basin to new asteroid ...

Dr. Tiscareno studies how things move (dynamics) in the solar system. In many cases, he applies dynamical methods to Saturn’s rings and other planetary ring systems. He is a Participating Scientist ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph ...

When astronomers observe distant exoplanets, they sometimes encounter a frustrating result: instead of revealing the chemical fingerprints of an atmosphere, the data appear almost completely flat.