The scientists believed a homeless animal would be better equipped to endure the harsh conditions of space travel. That’s because these planets are primarily made from gas and have no solid surface.

Learn key facts about the Moon: from its significant distance and relative size compared to Earth to its distinctive color ...

An curved arrow pointing right. Space is so unfathomably large and so unbelievably weird, that it can sometimes be difficult to convey basic facts. For example, you can fit all of our solar system ...

An curved arrow pointing right. Space is so unfathomably large and so unbelievably weird, that it can sometimes be difficult to convey basic facts. For example, you can fit all of our solar system ...

The moon landing in 1969 was an impressively monumental achievement in human history, showing technology could allow us to ...

Galaxies are incredible examples of how big and mysterious our universe is. Whether they’re small and scrappy or massive and majestic, they’re always fascinating. Keep looking up, you might just spot ...

As a result, scientists are increasingly monitoring Earth from space. NASA alone has dozens of missions dedicated to solving our planet's mysteries. At the same time, telescopes are gazing outward ...

A collection of down-to-Earth facts about our planet and ... Gravity is the pull that a planet exerts towards its centre. In a space station, you can no longer feel the effects of the ...

Explore facts about our solar system's fastest planet. Mercury is slightly larger than our Moon - 15,329 kilometres around ... It collected extensive data and images and transmitted them back to Earth ...