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.

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 ...

Were you watching on February 19 as the very excited men and women of NASA managed to land the newest invention, Perseverance, on Mars from their command center 131 million miles away? Who could ...

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

Behold, the giants! The Hubble Space Telescope has completed a decade of observing Jupiter, Saturn, Uranus and Neptune.

If you're 250 miles above the Earth, you have to travel 17,500 mph around the planet to experience continuous free-fall (the same speed that the International Space Station and its astronauts travel).

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

From the mysterious Planet Nine to the prospect of a "human-caused meteor shower," space and physics editor Brandon Specktor ...

Explore facts about our solar system's fastest planet. Mercury is slightly larger than our Moon ... them back to Earth to be studied by scientists. BepiColombo is a joint space mission by the European ...

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 ...