It's easy to think of the sun as simply a bright, orange ball. But thanks to high energy X-rays dancing on its surface, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) was able to snap an ...

The sun cannot be this bright at these energies.'" Their eyes, however, were not fooling them — the Sun was, per their readings, shooting off a ton of gamma rays that are between one and 10 ...

A team of scientists has discovered the highest-energy light ever observed emanating from the Sun.Known as gamma rays, these bright lights produce energy that is also much brighter than scientists ...

While the Sun is too bright for other telescopes such as NASA’s Chandra X-ray Observatory, NuSTAR can safely look at it without the risk of damaging its detectors.

Astronomers have discovered extraordinarily powerful X-ray jets blasting from two supermassive black holes that are so ancient that the jets shine in the afterglow of the Big Bang.

Scientists have discovered that the Sun produces higher energy light than was thought possible. An unusual type of telescope detected gamma rays with energies of over 1 tera electron volt, at ...

The sun is the brightest object in our skies — but it wouldn't be if we could see incredibly energetic gamma-rays as well as visible light. That's precisely the light that NASA's Fermi Gamma-ray ...

This is the spectacular moment sun rays cascaded through clouds at a scenic spot in China. Breathtaking footage captured by ...

Days filled with summer's sunny rays are rare enough that North Dakotans and Minnesotans are tempted to soak in every last one. Don't. Five or more sunburns double a person's risk for melanoma ...