Sun

Why is outer space dark when the Sun is right there? To find the answer, point a flashlight to the sky.

Its velocity surpassed 430,000 miles per hour, the highest ever reached by an object created by humans.

If the Sun becomes a red giant, the future of humanity is sealed—or so the experts believed.

Despite its similarities to the Earth, it can’t support life as we know it.

This type of eclipse occurs when approaches the part of its orbit that is farthest from Earth.

By working together, NASA and the ESA have managed to solve a decades-old mystery.

An extreme solar event could damage the power grid or create dangerous currents in gas pipelines.

An astronaut on the lunar surface could receive a dose of radiation thousands of times higher than on Earth.

If you missed last month's auroras, you might be in luck. Experts say they'll be back this week.

With the naked eye, we should be able to see the C/2023 A3 comet as bright as ever.

The Solar Dynamics Observatory is keeping track of what’s happening on the surface of the Earth’s star.

The sunspot has erupted with intense M- and X-class flares in just a matter of days, including one with a magnitude of X8.7 on Tuesday.