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.

Imagine looking up at the night sky in wonder. It’s clear and the blackness is studded with stars, thousands of light years ...

The ancient Greek philosopher Anaxagoras (500-428 BC) was the first person to hypothesize that the seeds of life are present ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Budget would eliminate several projects that are hitting proposed targets or actively conducting valuable research.

According to the story: “Astronomers are monitoring an object headed our way that may have wandered over from another star ...

NASA asteroid defense setback prompts experts to warn about gaps in Earth’s planetary protection strategy. Length: 145 ...

NASA's DART spacecraft attempted to deflect an asteroid about the size of the Great Pyramid of Giza. New work tracking the debris has found a few fairly large surprises.

Unlike rocky planets where asteroid impacts leave visible craters, gas giants like Saturn have outer layers of hydrogen and ...

Astronomers have called for help to identify a mystery object that may have hit Saturn on Saturday in what could be the first ...

Wu Weiren, chief designer of China’s lunar program and an academician of the Chinese Academy of Engineering, elected as ...