Using archival data from NASA’s NEOWISE mission along with data from other space and ground-based observatories, astronomers identified the clearest observational record yet of a massive star fading ...

In a paper to be published in the Planetary Science Journal, scientists from SETI Institute, Southwest Research Institute, ...

A new analysis of data from four instruments aboard NASA’s Cassini spacecraft has demonstrated the crucial role that Saturn’s ...

Known non-biological sources, from meteorites to surface chemistry, fall short of accounting for organic compounds detected ...

ESA’s CHaracterising ExOPlanet Satellite (CHEOPS) has revealed a four-planet system whose outermost world is a small and rocky planet -- not a gas giant.

For decades, the motions of stars near the center of our Milky Way Galaxy have been treated as some of the clearest evidence ...

Planetary scientists have identified a previously unrecognized pathway for water loss on Mars -- observed, for the first time ...

New orbital data reveal that the most recently active volcanic systems on Mars weren’t simple one-off blasts into space.

Using high-precision radio-occultation measurements from NASA’s Juno mission and incorporating the effects of zonal winds, ...

Astronomers using the Event Horizon Telescope -- a planet-scale array of eight ground-based radio telescopes -- have ...