AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

NASA’s astronaut, Nichole “Vapor” Ayers, has photographed a spectacular atmospheric event – a large red ‘jellyfish’ sprite ...

While US officials are worried about Russian anti-satellite weapons, or ASATs, the behavior of Russia's Nivelir satellites is puzzling. It's clear that Russia is deliberately launching these ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

When the moon is positioned farther from Earth's equator and closer to the poles, its pull on the planet becomes weaker. With ...