Fossils from New Zealand reveal the existence of a giant petrel with a wicked sharp beak that lived 3 million years ago.
Research in Chile's Atacama Desert suggests that the science instruments on the Red Planet aren't capable of detecting signs of long-dead microbial life.
The discovery of a hidden primordial black hole, which formed just 750 million years after the Big Bang, suggests that it may be the 'tip of the iceberg' of the cosmic monsters hiding in the early universe.
If humans suddenly disappeared and our pets had to fend for themselves, could dogs survive in a world without people?