Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

Good morning and welcome to the Live Science news blog. At Live Science we're a passionate bunch who love reading the latest research and how new discoveries are changing the world around us. We're ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth approximately 66 million years ago, leading to the extinction of about 70% ...