Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

Asteroid 2024 YR4 currently has a 2.6 per cent chance of hitting Earth on 22 December, 2032, making it the biggest ...

That mission is known as NS-30, because it will be the 30th overall launch of Blue Origin's New Shepard rocket-capsule combo.

As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

Rewriting History, Trump Blames Ukraine for War and Calls Zelensky ‘Dictator’ President Trump made an array of false claims as he tried to cast President Volodymyr Zelensky as a villain who ...

Dateline producer Marianne O'Donnell reflects on what it was like to cover the 2017 murders of Abby Williams and Libby German in Delphi, Indiana, and the trial that followed nearly seven years later.