British astronaut in orbit as he begins his Principia mission after successful lift-off in Russian Soyuz rocket - follow the latest updates via the link.
Oceans’ worth of ancient water may have been locked up in minerals in Mars's crust, increasing estimates for the total amount of that once flowed on the red planet.
Once u leave the majestic skies of Earth, the word “cloud” no longer means a white fluffy-looking structure that produces rain. Instead, clouds in the greater universe are clumpy areas of greater density than their surroundings.