It turned out finally that the explanation of Mercury’s weird behaviour was not a planet; it was something much stranger. The ...

Halley’s comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers annually.

Venus dominates as the brilliant “Morning Star” in the east-southeast before dawn; the Eta Aquariid meteor shower takes place ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

NASA's MESSENGER mission came to an end when the spacecraft intentionally crashed into the surface of Mercury. MESSENGER was the first spacecraft to orbit Mercury and the second spacecraft to study it ...

The Milky Way is known to host a diverse array of planetary systems, providing astronomers with extensive insights into how ...

The Eta Aquariids, created by Halley’s Comet, will peak on May 5-6, 2025, with up to 60 meteors per hour visible before the ...

A rare and dramatic scene unfolds 140 light-years from Earth. A rocky planet, once whole, is now crumbling to dust under the ...

A team of astronomers poring through old astronomical data may have seen a candidate for the elusive Planet Nine – a ...

CAPE CANAVERAL, Fla. (AP) — Amazon’s first batch of internet satellites rocketed toward orbit Monday, the latest entry in the ...

Astronomers from MIT have uncovered a dramatic celestial spectacle: a Mercury-sized exoplanet that is rapidly disintegrating ...