A Harvard scientist has suggested that the trajectory of the mysterious space lump 3I/ATLAS will bring it close enough to ...

Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

Interstellar comet 3I/Atlas has moved within 300 million km of Earth as scientists continue tracking its rare journey.

That is the provocative question at the heart of the latest developments surrounding the interstellar comet 3I/ATLAS, as new NASA data sharpen the picture of its composition while an unusual orbital ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

NASA has unveiled images of interstellar comet 3I/ATLAS taken during its close flyby of Mars in October, marking one of the ...

Beginning Nov. 25, 2025, Mercury will be far enough west to peek above the horizon just before sunrise. Venus will also be naked-eye-visible as a bright point of light but you’ll want a telescope or a ...

New telescope observations reveal structural features never documented in any known celestial object The morphology defies conventional understanding. The forward anti-tail persists where physics says ...

Snorkeling among countless stingless jellyfish in far-off Micronesia would’ve been a pinch-me moment on its own. But doing so in one of the world’s few marine lakes — and without another tourist in ...

The night sky will show a rare alignment of planets in the night sky, with Venus and Mercury visible the morning of Tuesday, Nov. 25.

Meet comet 3I/Atlas. A collision with this rock would release the same kind of energy that a certain other asteroid did 66 ...