Thought to be extinct in the wild, the Spix Macaw currently exists in captivity with their numbers in the dismally low 60 to ...

For years, astronomers have been on the hunt for the first generation of stars, primordial relics of the early universe. And ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe ...

An object spotted in satellite images has sparked the latest bid to answer the 88-year-old Amelia Earhart mystery.