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.

The confirmation of the gas giant planet would mark a milestone as the closest planet to Earth that orbits in a habitable ...

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

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

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

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

The comet is hurtling our way at 130,000 mph, but will veer closer to Mars than Earth, keeping a safe distance from both.

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

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.

A strange shift in Earth's rotation is making our days milliseconds shorter — and scientists are racing to understand why.

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...