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.

Paul Wiegert, a Western physics and astronomy professor, shares insights on asteroid 2024 YR4 and the likelihood it will hit Earth or the Moon.

NASA sent a rocket to probe an asteroid worth $10,000,000,000,000,000,000 that could hypothetically turn every single person on Planet Earth into billionaires just over a year ago and its employees ...

How did Earth, alone among the Solar System's rocky planets, become the home for life? How, among all this frigid ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...

Breaking news headlines, stories and live updates on current affairs from across the globe. Complete coverage on the latest ...

Folks, it's official: the object that astronomers recently spotted blowing through the outer solar system came from ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

No, it was a meteorite. For a few brief moments today, a bright fireball lit up the midnight skies above Scotland. The meteor ...