These incredible space photos were taken using advanced techniques to reveal some of the wonders in the universe.
A mummified frozen cat, baby mammoths, an ancient bison and a young foal are just some of the amazing creatures nature has trapped in time.
Here are 5 of the most famous prehistoric creatures found preserved in the frozen depths of Siberia.
From the beginning of the universe to the present day, it's one of the few things we regard as regular and unchanging. But is it really so constant? We take a look at the physics of time.
Some of the world's strangest species can be found down under, from dolphin-tailed sea cows to mysterious marsupial moles.
The death of the dinosaurs was just one of five global events that saw millions of species wiped out. How do these events happen? And how can we stop it happening again?
What's the weather like on other worlds? Expect methane rain, global haboobs and a 10,000-mile-wide hurricane.
Some of the best locations nature has to offer, from an island teeming with dragons to a famous waterfall.
The European Space Agency’s Space Situational Awareness program is tackling the problem on three fronts.