The NASA/ESA Hubble Space Telescope has produced an unprecedented image of the central region of the spiral galaxy NGC 2903.
This Hubble image shows the...
Measurements of today’s expansion rate do not match the rate that was expected based on how the Universe appeared shortly after the Big Bang over 13...
NASA has released an absolutely beautiful photo taken by the NASA/ESA Hubble Space Telescope of the globular cluster Messier 75.
This Hubble image shows...
In celebration of the 29th anniversary of the launch of the NASA/ESA Hubble Space Telescope, astronomers captured this colorful look at the hourglass-shaped...
Between 2014 and 2016, the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) camera onboard ESA’s Rosetta spacecraft captured almost...
NASA has released a stunning image snapped by the agency’s Hubble Space Telescope of the globular cluster Messier 62.
This image of Messier 62 is a composite...
The NASA/ESA Hubble Space Telescope has captured an amazing new photo of the 8-billion-year-old globular cluster Messier 3.
This Hubble image shows the...
NASA has released a stunning image snapped by the agency’s Hubble Space Telescope of the globular cluster Messier 2.
This image from the NASA/ESA Hubble...
Astronomers once thought asteroids were boring, wayward space rocks that simply orbit around the Sun. But recent observations show that asteroids are anything...
A series of images taken by the NASA/ESA Hubble Space Telescope documents the formation of a Great Dark Spot on Neptune for the first time.
This is a composite...
The NASA/ESA Hubble Space Telescope has captured the brilliance of an open star cluster called Messier 11 (also known as M11 or NGC 6705).
This image of...
The NASA/ESA Hubble Space Telescope has produced this beautiful image of an elliptical galaxy called Messier 49.
This Hubble image shows the elliptical...
Hypervelocity stars are solitary stars moving fast enough to escape the gravitational grasp of the Milky Way Galaxy. Discovered in 2014, LAMOST-HVS1 is...
Globular clusters are densely packed, spherical collections of hundreds of thousands or even millions of stars. They are among the oldest known objects...
Observations by ESA’s Mars Express orbiter show evidence of an ancient planet-wide groundwater system on the Red Planet.
Mosaic of the Valles Marineris...
A stunning new image from the NASA/ESA Hubble Space Telescope captures an ongoing cosmic collision between two disk galaxies.
This Hubble image shows two...
Mars today is a cold, dry world, but it may not always have been so. Recent studies increasingly indicate that the planet once had a thicker, denser atmosphere...