Have you ever seen a flash of bright light streaking through the night sky? People around the world have different ways of explaining these so-called shooting stars.

SPACE
If we ever met an alien in person, it probably wouldn't look like E.T.
NASA could use the results of its Twins Study to send humans to Mars.
Mercury will also be easy to spot on the night of March 31.
Space suits don’t just make astronauts look cool. Without these special suits, astronauts wouldn’t be able to leave their spacecraft.
Neptune is like a celestial paint swatch: a stunning royal blue that demands attention.
A new study sheds light on the cause of the famous dimming of "Tabby's star."
The character dreams of being the first person to visit Mars.
"From a NASA perspective, there is no other single event that has informed so many scientific disciplines."