After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares ...

The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.

Space weather experts warn that a moderate-strength geomagnetic storm could hit Earth Friday or Saturday (Aug. 8 or 9) — ...

After more than three weeks without a powerful solar flare, the sun has suddenly ramped up its activity, firing off three ...

After weeks of relative quiet, the Sun has erupted with a series of powerful solar flares, signaling a return to more active ...

As the Solar System drifts through the Milky Way, it occasionally encounters regions of space capable of reshaping Earth’s ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Proba-3 creates artificial solar eclipse to study Sun's corona. Two ESA satellites fly in precise formation to reveal the sun ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to pass our way.

New data from the James Webb telescope reveals that Pluto's strange atmospheric haze controls its climate, surprising ...

Solar and wind power are almost too cheap for our economy,” says author Bill McKibben, arguing the switch from fossil fuels must happen soon.