A fast stream of solar wind from a colossal coronal hole in the sun’s atmosphere could spark a geomagnetic storm, bringing ...

Nuclear war is much more unpredictable than asteroids, but, unlike the dinosaurs of 66 million years ago, humans can avoid causing their own extinction.

As dazzling Venus dominates the evening sky, May is the perfect moment to start a months-long love affair with the brightest planet.

By the end of May almost all communities in the arctic circle will be seeing 24-hour daylight thanks to the tilt of the Earth ...

Researchers in Japan traced a hidden medieval solar storm using ancient tree rings and centuries-old sky observations. The ...