“They appear moments after a lightning strike—a sudden reddish flash that can take a range of shapes, often combining diffuse ...

From the International Space Station, NASA astronaut Nichole Ayers captured a rare red sprite over Mexico and the United ...

ANALYSIS: In his feud with Donald Trump, the world’s richest person has the distinct disadvantage of not possessing nukes.

Astronauts on the International Space Station (ISS) spent the week of June 2–6 taking pictures of huge smoke clouds that could be seen from space. This was at a time when wildfires were raging in ...

Astronauts were seen pulling hilarious poses during a fun photo session aboard the International Space Station (ISS). The ...