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 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) — ...

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

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

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

CAPE CANAVERAL, Fla. (AP) — The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our ...

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

As more satellites are launched into orbit, space agencies are looking at how to predict space weather events that could harm ...