In the early 1990s, eight people tried to survive in a hermetically sealed glass structure filled with miniature forests, ...

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

A NASA satellite that’s been orbiting as space junk since 1967, Relay 2, emitted an unexpected, powerful radio burst that ...

On July 4, there will be an uncommonly good opportunity to get a glimpse of Mercury, the smallest, speediest planet in our ...