In a recent study published in Earth and Planetary Science Letters, researchers suggest that Earth once had a giant, ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth this week on Dec. 19, 2025. Here's the latest news ...

Our understanding of the true nature of the cosmos relies on measurements of its expansion, but cosmologists have been ...

The next-gen Nancy Grace Roman Space Telescope is slated to explore vast cosmic voids to uncover the hidden forces shaping ...

There are about 15,000 satellites orbiting Earth. Most of them, like the International Space Station and the Hubble Telescope ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

New images of interstellar object 3I/ATLAS show a sunward anti-tail extending over 500,000 kilometers, surpassing the ...

Over a month after its perihelion, or closest pass of the Sun, observations still clearly show 3I/ATLAS' "anti-tail." ...

Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...

Reflections on how viewing Earth from space can alter perspective and understanding. Trump's retribution plan: If you don't ...

3I/ATLAS will soon be approaching Earth at its nearest to the only known planet with life teeming. On its closest flyby on ...

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