New simulations reveal interstellar objects don't arrive uniformly, with concentrations from the solar apex and galactic ...

Winter is setting in across the Northern Hemisphere, and with it, cold and cloudy winter days. Clouds play a vital role in ...

The aurora is one of the most awe-inspiring natural phenomena visible from Earth. It is so dramatic that many people, even ...

Astronomers and meteorologists measure Earth's seasons differently, which is why their winter start dates are nearly three ...

A powerful solar flare and rare severe geomagnetic storm triggered aurora lights and precautionary measures aboard the ISS.

Nearly every color of aurora could be seen as far south as Mexico during last week's "best ever" atmospheric event over Wyoming. What create's ...

In Sioux Falls, the sun set at 5 p.m. on Nov. 16 – and it won't set that late again until Dec. 31, according to timeanddate.com.

As of Monday, Nov. 17, the moon phase is Waning Crescent. This means 7% of the moon is lit up tonight, according to NASA's ...

A ridiculous but instructive thought experiment involving deep time, plate tectonics, erosion and the slow death of the sun ...

Had one hoped to leave a time capsule for today’s Bostonians in the Permian period 250 million years ago, much less the Pliocene epoch four million years ago , they would have been completely, utterly ...

Sunset on Tuesday will mark the final appearance of the sun over Utqiagvik, Alaska, in 2025 as the town enters "polar night," ...

You can watch for Geminid meteors all night on December 13 through Dec. 14 as the shower's radiant will rise in the ...