Astronomers have discovered the most distant and thus earliest spiral galaxy ever seen, using the James Webb Space Telescope ...

The northern lights revealed themselves to a handful of states Tuesday, but if you missed out, you still have a chance to ...

This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

An eerie new video from ESA's Solar Orbiter shows a towering 'cyclone' of plasma exhibiting behaviors never seen before on our sun.

The northern lights were visible farther south than normal Tuesday, April 15, and they'll be visible again for some residents tonight, April 16.

Watch Comet 96P/Macholz brighten as it flies by the sun in these time-lapses captured by the ESA/NASA Solar and Heliospheric ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an inferior conjunction.

Sept. 21, 2025: This partial solar eclipse will be visible in parts of Australia, New Zealand, Antarctica, and the Pacific and Atlantic Oceans. Feb. 17, 2026: This eclipse will be annular in ...

A partial solar eclipse will become visible this weekend in New Jersey. Will you see a "double sunrise"? Here's timing, key ...

Multiple spacecraft captured the moon's shadow sweeping across North America at more than 1,500 mph during the 2024 total ...

A powerful solar storm is approaching Earth. This creates a rare chance to view the Northern Lights in many US and European ...

The comet can be seen with binoculars or a small telescope and may be visible to the naked eye later this month.