Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

With eight billion people, we use a lot of the Earth's resources in ways that are likely unsustainable. Klaus Hubacek, ...

Researchers mapped Earth’s ionosphere, part of the upper atmosphere, using signal data from 40 million phones – a method that ...

Google researcher and paper co-author Brian Williams told Popular Science he had previously ... roughly 100,000 locations ...

Migratory birds are known for their ability to traverse thousands of kilometers to reach their breeding or wintering grounds.