The planet Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. There’s nothing to walk on, and no place to land a spaceship. But how can that be? If Jupiter doesn ...

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.

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

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

Researchers show algae can grow in Mars-like atmospheric pressure conditions. If humans are ever to establish permanent ...

The experiments show a real chance of creating self-sufficient, closed-loop living spaces using shelters made from ...

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked up in rocks.

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the ...

Terraforming Mars with rapid warming particles or gases could enable plants to start growing within 40 years.

The answer to whether tiny bacterial life-forms really do exist in the clouds of Venus could be revealed once and for all by ...