Most people know Jimmy Stewart as the beloved actor best recognized for films like The Philadelphia Story (1940) and It’s a ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers ...

This Christmas, astronomers are highlighting a spectacular region of space that looks remarkably like a glowing holiday tree.

Ukrainian President Volodymyr Zelensky on Friday announced a trip to meet with US President Donald Trump in the coming days. ...

Two inexpensive commercial materials store solar energy as electrons and release hydrogen fuel on demand in darkness, requiring no external power and setting a new performance record.