An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

For decades, astronomers assumed that small, rocky planets in precarious proximity to their stars were destined to be barren, ...

Learn to decode James Webb photos with this JWST image guide, offering clear space image explanation and beginner-friendly insights into stunning infrared telescope images.

December's faint Ursid meteor shower returns under dark skies, offering a small chance of unexpected activity.

Webb’s latest observations reveal a hellish world cloaked in an unexpected atmosphere: TOI-561 b, an ultra-hot rocky planet ...

After a yearslong series of setbacks, NASA’s Escape and Plasma Acceleration and Dynamics Explorers, or ESCAPADE, mission has ...