All evidence points to Mars having had a carbon dioxide-rich atmosphere billions of years ago, but insufficient carbonates in Martian soil challenge this theory. Now, a new study using data from ...

What happens if Earth’s atmosphere ignited tomorrow? Explore the terrifying consequences of a sudden planetary firestorm.

If you have seen a bright light streak across the sky, you have likely seen a meteor. Meteors are rocks from space that hit Earth's atmosphere and are commonly referred to as falling stars or shooting ...

A Soviet spacecraft launched a half-century ago called Kosmos 482 has been orbiting the Earth for decades and is at last expected to reenter Earth's atmosphere this coming weekend. The rogue probe is ...

A European company that seeks to develop orbital spacecraft for cargo, and eventually humans, took a step forward this week with a test flight that saw its “Mission Possible” vehicle power up and fly ...