Edwin Hubble's revelation in 1924 that the Andromeda Nebula was, in fact, an 'island universe,' was a pivotal moment in our ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Their red hue in these images comes from intense ... While some dark nebulas are visible to the naked eye, such as the Coalsack Nebula, that isn't true of the Dark Wolf Nebula.

Stunning image captures werewolf nebula in the cosmic sky - The colourful clouds glow red because of the intense UV radiation ...

Nicknamed the Dark Wolf Nebula, the cloud is in the Scorpius constellation ... The colourful clouds are built up mostly of hydrogen gas and glow in red tone because of the intense UV radiation ...

In an image snapped by the OLI (Operational Land Imager) on Landsat 8, Mexico's most active volcano Popocatépetl can be seen ...

Antares is a red giant star, and its light appears noticeably red-hued to the human eye. In fact ... M20 in particular is famous as the Trifid Nebula. As the sky continues to darken, see if ...

If you can’t see it by eye, try using binoculars or a telescope ... also known as the Trifid Nebula. Containing both a reflection and emission nebula, this object is cut through with dark ...

WOH G64 is what's known as a red giant, a star nearing the end of its life, running out of hydrogen fuel. Through this ...

This evil eye-shaped nebula, formally named Fomalhaut ... NASA did discover this creepy human face on the Red Planet. The original "Face on Mars" image was taken by NASA's Viking 1 orbiter ...