In a year packed full of phenomenal cometary capers, astrophotographer Dan Bartlett captured a staggering image of comet ...

Sunspot AR3663 erupted with powerful X1.6 and M4 solar flares. NASA's Solar Dynamics Observatory captured the fireworks.

Sunspot AR3234 blasted an X2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues ...

In the run up to Christmas, carols fill the air. Many have an astronomical twist, singing of the "Christmas Star" from the ...

Technically, the sun is a G-type main-sequence star — specifically, a G2V star. The "V" indicates that it is a dwarf, Tony ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

Stargazers should get the best view of this month's peak lunar display shortly after sundown, weather permitting.

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

New observations of a nearby red giant star suggest that a long-standing explanation for how giant stars spread life’s ...

Often considered the strongest meteor shower of the year, the Geminids produce numerous colorful meteors every hour. During ...