A satellite image captured by Landsat 8 shows Mount Vesuvius "peering" through an eerily circular hole in the clouds.
reference Artificial satellites from Earth have only populated space since 1957, but there are now hundreds of thousands of objects from our planet in orbit.
Reference Rocky surfaces and molten cores are what the four inner planets of the solar system have in common
Scientists observed changes in the signals coming from rapidly-spinning stars called pulsars that might point to the existence of subtle space-time ripples vibrating throughout the entire universe.
Reference We explore some of the best Hubble Space Telescope images of all time including nebulas, galaxies, planets and more!
Scientists have gotten a close look at an extreme case of seasons, thanks to a retired NASA telescope.
Nicolaus Copernicus proposed his theory that the planets revolved around the sun in the 1500s, when most people believed that Earth was the center of the universe.
A powerful underwater volcano eruption in Tonga on Saturday (Jan. 15) was captured as it happened in stunning satellite images.
A group of astronomers and citizen scientists has uncovered a hidden planet the size of Jupiter in a distant solar system.
A tsunami triggered by the explosive eruption of the underwater Tonga volcano in the Pacific Ocean slammed the shoreline of the Pacific nation Saturday (Jan. 15).
Satellites orbiting Earth captured a powerful undersea eruption in Tonga from space on Thursday (Jan. 13).
A telescope in Arizona modified to measure the true distance of galaxies has produced the largest three-dimensional map of the universe ever.
Astronomers have spotted three new exoplanets orbiting dangerously close to their parent stars, on the brink of extinction.
Astrophysics is a branch of space science that applies the laws of physics and chemistry to seek to understand the universe and our place in it.
Reference If the rays of the setting or rising sun hit the moon just right, the blood moon appears.
Reference Redshift and blueshift describe the change in the frequency of a light wave depending on whether an object is moving towards or away from us.
2021 was another record-setting year, ranking as the sixth hottest year on record. Following a trend, these past eight years have also been the eight hottest years on record.
As the James Webb Space Telescope begins the lengthy process of aligning its 18 primary mirror segments, astronomers wonder: What will the huge observatory look at first?