For millions of years, a fragment of ice and dust drifted between the stars—like a sealed bottle cast into the cosmic ocean.

The Very Large Telescope (VLT) detected significant nickel vapor but almost no iron in the interstellar 3I/Atlas comet. Having nickel without iron is not a chemical signature found in known natural ...

Right now a comet is hurtling through our solar system at more than 137,000 miles per hour. But it is not just this interstellar object’s speed that has earthly astronomers glued to their telescopes.

The Manhattan-sized interstellar object 3I/ATLAS is now turning green as it rockets closer to the Sun — with experts stating it appears something “switched on” to inspire the “anomalous evolution.” ...

The interstellar comet 3I/ATLAS is generating both excitement and debate after astronomers identified it as only the third ...

On Sept. 7 2025, the skies darkened as Earth's shadow consumed the moon. Skywatchers in many parts of the world saw the moon turn blood red due to a total lunar eclipse. For amateur astronomers ...

The interstellar visitor will pass just 30 million kilometers from Mars on Oct. 3 — far closer than it comes to Earth. The European Space Agency (ESA) is preparing for a unique opportunity to study ...

A mysterious object hurtling through space has been identified as a rare “interstellar object,” only the third of its kind ever seen. In July, NASA reported its ATLAS (Asteroid Terrestrial-impact Last ...