The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Carbon dioxide detected in the atmosphere of exoplanets. The post Carbon Dioxide in Distant Exoplanets Discovered By ...

The ice-giant planet Uranus, which travels around the sun tipped on its side, is a weird and mysterious world. Now, in an ...

Dark matter is a confounding concept that teeters on the leading edges of cosmology and physics. We don't know what it is or ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...