The Northern Lights or aurora borealis may be visible in the U.S. this week due to a coronal hole and a "co-rotating ...

Fifty-five years after the first Earth Day, Environmental Protection Agency employees and advocates call for help as the ...

April 22 is traditionally known as Earth Day, the occasion where we pause as temporary travelers on our 'blue marble' to ...

Mother Nature lent a hand as rain stopped just as the Wauconda Park District’s Earth Day Collection and Giveaway began on ...

A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth's magnetic field that let more ...

From the daily newsletter: why we should be in the streets; and Pope Francis’s tangled relationship with Argentina.

"With only lunar soil and a basic ingredient from the sun — which is always spitting out hydrogen — there's a possibility of ...

Envision the dramatic changes to gravity and our planet's structure if Earth matched the sun's size. Trump-appointed National ...

The Daniel K. Inouye Solar Telescope, the world's largest solar telescope, can see the sun in unprecedented detail. Here is ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

Solar Orbiter began routine science operations in 2021 and has since looped ever closer to the Sun, stealing bits of speed ...

Let's turn the sun into a telescope. In fact, we don't have to do any work—we just have to be in the right spot.