A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...

A NASA space telescope on a mission to map millions of galaxies has turned on its detectors for the first time, capturing ...

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

Six overlapping observations taken using the Hubble Space Telescope at both visible and infrared wavelengths were combined to ...

NASA's SPHEREx observatory has started capturing its initial images, paving the way for a comprehensive study of millions of ...

The Large UV/Optical/IR Surveyor (LUVOIR) telescope has been imagined as a habitable planet hunter, but it could be so much ...

Saturn is below Venus and very low in the predawn sky. In late April it is five degrees above the horizon. You may need ...

A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of many galaxies in an ever-expanding cosmos. This breakthrough led to the ...

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