There are several ways to detect cosmic rays. You can look for them directly—whether on the ground ... sky that seem to produce more cosmic rays than others, but we don’t definitively know which ...

W hat appeared to be two detached pieces of rainbows appeared on opposite sides of the sun in the sky over Houston on Monday, leaving those who witnessed them from the ground in awe. Collin ...

Cosmic rays can come from distant supernovas, black holes and even the sun, and they constantly lash Earth's upper atmosphere. When they splinter as they interact with air molecules, they produce ...

The whole dome of night sky was awash with color: cascades of yellow-green and blushes of crimson fanning from a darker point high overhead. As they fell in broad rays, they shifted and changed in ...

While sunsets on Mars are uniquely moody, NASA 's Curiosity rover has captured a stunning image of a martian sunset, featuring light rays that illuminated a bank of clouds as the sun set over the ...