We’ve never known why sunspots can last on our star’s surface for as long as they do, but we finally cracked the case.

What’s happening with sustainable living in Portugal is more than just a passing phase. It's genuinely becoming part of the ...

For centuries, humanity believed that Earth was the center of the universe, a view championed by Aristotle and Ptolemy. But ...

An EPA ruling says Colorado can't require coal plant closures by a certain date, and some utilities may take advantage.

It is inevitable that America will eventually follow the rest of the world and that in 40 or so years, it will run mainly on ...

A gravitational wave has revealed the biggest black-hole merger ever recorded—so massive and extreme, it defies current astrophysical models. The clash formed a 225-solar-mass monster, possibly made ...

Following a March 21 hearing on Staten Island, arbitrator Joseph J. Maltese ruled against ATTYX LLC, and its affiliated ...

Despite the powerful telescopes that modern astronomers have to work with, the distant reaches of the Solar System are still ...

Eden Prairie's Fire Station #1 now features a rooftop solar array as part of Minnesota’s Solar on Public Buildings program.

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented ...

NASA and the University of Colorado Boulder will launch a 60-foot rocket out of New Mexico on Friday, which, once launched, ...

SYFY ’s The Ark follows the crew of an interstellar spacecraft on a multi-light-year journey to the star next door. In the ...