La Niña, when tropical waters in the eastern Pacific become cooler than normal, is ending and the opposite event, El Niño, is set for later this year.

A powerful "gamma-ray burst" has been seen exploding from merging neutron stars hidden within a previously unknown mini-galaxy leftover from an ancient cosmic crash. The "collision within a collision" ...

The 322-foot (98-meter) rocket will roll out of the hangar and back to the pad next week at Florida’s Kennedy Space Center, leading to a launch attempt as early as April 1. It will mark humanity’s ...

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Scientists believe this long stream of gas may have formed when several galaxies collided millions of years ago.

Saharan dust originating from northwestern Africa swept across parts of Europe in early March, carried by winter winds from desert regions in Morocco and neighboring areas.