Aside from sunlight, the sun sends out a gusty stream of particles called the solar wind. The ESA-led Solar Orbiter mission ...

A NASA mission, IMAP, will investigate and map the sun's particles and energy across the entire heliosphere, using a ...

Even if the specific monthly peak of the cycle has passed, it doesn't mean solar activity is over. Strong solar activity ...

NEW YORK — Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. But don't plan ...

A partial solar eclipse on Saturday will make it look as if the moon has taken a bite out of the sun over parts of North ...

UPDATE: The Northern Lights could be visible in the U.S. tonight (March 26), appearing as far south as New York and Idaho due to a "coronal hole" sending streams of charged particles toward Earth.

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

orbiting objects will interfere with observations of the universe, as well as spaceflight safety experts who now see Starlink as the number one source of collision hazard in Earth's orbit.

But due to persistent leaks and errors aboard Starliner, the Boeing-made spacecraft was ultimately sent back to Earth without a crew — leaving Williams and Wilmore stuck on the ISS for more than ...