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

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...

Sunspot AR4114 erupted with M8 and M6-class solar flares. NASA's Solar Dynamics Observatory captured the fireworks in ...

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

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HIP 67522 b can’t stop blasting itself in the face with stellar flares, a type of magnetic interaction that scientists have ...

HIP 67522 b can’t stop blasting itself in the face with stellar flares, a type of magnetic interaction that scientists have ...

The sun has been active and unleashed an intense combination of coronal mass ejections and coronal hole high-speed streams with a geomagnetic storm forecasted for tonight, Aug. 7, and tomorrow, Aug. 8 ...

A NASA telescope has detected its clearest signal yet of a potential Saturn-sized gas giant orbiting around a distant star complex. The system, known as Alpha Centauri, is more than four light-years ...

This artist's concept shows NASA's Neil Gehrels Swift Observatory orbiting above Earth.Credit: NASA's Goddard Space Flight ...

The northern lights are best seen between 10 p.m. and 2 a.m. local time while at a high, north-facing vantage point away from ...

A solar storm is forecast for Aug. 7 and 8, creating favorable conditions for the northern lights. Here's where the northern ...