The Fermi bubbles were discovered in 2010 by NASA’s Fermi Gamma-ray Space Telescope. The two orbs form an hourglass structure ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...

It's only where the clouds don't absorb most-or-all of the light that you get the sunbeam effect. As it turns out, these rays actually are, to the best we can measure, truly parallel lines ...

Thicker clouds may obstruct the rays, while thinner clouds allow more light to pass through, creating more pronounced rays. Atmospheric conditions and the sun's position often work in tandem.

The light known as "crepuscular rays" from the Latin word for "twilight," can be seen illuminating a bank of clouds over Mars.. The image came about as part of the Curiosity rover's new mission on ...

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

Ray tried to account for that backscattering with the help of geometric optics, historically associated with the corpuscular theory of light, which models its propagation by means of rectilinear ...

A study finds no link between incoming solar rays and global cloud cover, dealing a blow to climate skeptics who argue that warming is caused by the rays, not manmade emissions.

Researchers recently released simulations of the Large Magellanic Cloud — a satellite galaxy of the Milky Way — and found that cosmic rays from a starburst event are starting to rip it apart.

Two of the most perplexing structures in the universe have just become even more mysterious. Researchers studying the Milky Way’s center have discovered unexpected cold hydrogen clouds nestled inside ...