A stray comet will make its closest approach to Earth this week in one last hurrah before racing back toward interstellar ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles (53 million kilometers). It will be the ...

NASA’s Parker Solar Probe has been on a groundbreaking mission to study the Sun like never before. Recently, it made another ...

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

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

Webb Telescope detects an atmosphere on TOI-561 b, a scorching rocky planet once thought too small and hot to hold onto its ...

James Webb Space Telescope observations reveal atmospheric gases above the molten rocky exoplanet TOI-561 b, providing the strongest evidence yet of an atmosphere on a tidally-locked ultra-hot ...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

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