Nicknamed the "Giant Dark Cloud," scientists first noticed that feature in data gathered by an infrared camera aboard the Japanese spacecraft Akatsuki, which has been orbiting Venus since 2015.

This certainly doesn't sound warm, but it is warmer than the CMB temperature of today, which is just 2.7 Kelvin or -454 Fahrenheit. Trying to Understand Dark Energy Dominik Riechers, professor of ...

Barnard correctly argued that this appearance was due to “obscuring matter in space.” We know today that these dark markings are actually clouds of interstellar gas and dust grains.

A Massive, Glow-in-the-Dark Cloud Lurking in Our Cosmic Backyard The cloud, named Eos, is chock-full of molecular hydrogen and possibly rife with star-forming potential in the future.

The Falcon 9 rocket was launched a little after 5 a.m. Monday, well before first sunlight, and yet the clouds appeared to glow in the dark.

Your position relative to the cloud and where the sun is shining will also affect how dark a storm cloud appears. If you are viewing the cloud from the opposite side of the sun, it appears much ...