A stunning blue light likely caused by SpaceX Falcon 9 rocket fuel illuminated the night skies over Europe on Monday.

The sounding rockets released vapor tracers and pressure sensors at different altitudes across central and northern Alaska ...

Paris, France's capital, displays why it is known as the "City of Lights" in this photo taken from on board the International ...

Forecasts call for mild auroral activity Monday night that will weaken by Tuesday, when no states in the contiguous U.S. are ...

Some U.S. states could be treated with a northern lights display due a minor geomagnetic storm on the sun, according to space ...

A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.