People in the northernmost states may have a chance to see auroras glowing in the northern sky tonight.

Now, researchers using NASA's Imaging X-ray Polarimetry Explorer (IXPE) have gathered data about 12 known black holes to ...

Earlier this month, another geomagnetic blast unleashed lashes of purple aurora australis across the sky as far north as ...

The sun erupted with an X-class solar flare on Halloween, and solar activity is expected to remain high through Nov. 3.

Before dawn the next day enormous auroral displays of red, green, and purple illuminated the ... Neither solid, liquid, nor gas, the sun is made up of plasma, the “fourth state of matter ...

A geomagnetic storm supercharged Earth's auroras, or the northern lights overnight on Thursday (Oct. 10), with aurora watchers in the U.S. and across the globe on hand to capture the stunning ...

Solar storms can disrupt GPS and air travel, and cause blackouts. Get one big enough, experts warn, and it could be a ...

NASA recently announced that as of late October, the Sun has reached solar maximum: a repeating crescendo of solar activity that often comes with increased solar flares. True to form, it seems like ...

After a massive solar flare erupted this week, NOAA issued a view-line map of the US, including more states with increased ...

The extreme qualities of neutron stars could mean these dead stellar remnants gather dense clouds of hypothetical particles ...

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A contentious part of the measure would authorize the city to put up signs at faith-based pregnancy resource centers notifying pregnant women that the clinics don’t offer abortions. Political turmoil ...