The subterranean ocean on Ganymede is thought to have more water than all the water on Earth's surface.
The magnitude of the chaos can range widely, from planets whose orbits remain largely circular to those whose orbits get so elongated that a planet could slam into its host star.
The implications of such activity on a world other than our planet open up unprecedented scientific possibilities.
The exact source of this high-energy light is uncertain at this point, but it just might be a signal of dark matter lurking at the galaxy’s center.
This beautiful new image is the most detailed view of the southern constellation Ara.
The findings from newly released imaging data may help unravel the mysteries behind dark matter.
A new “true color” radio image of Abell 2256 suggests that previously unexpected physical processes are at work in galaxy cluster encounters.
US 708 is a rapidly rotating, compact helium star likely formed by interaction with a close companion.
About 4 billion years ago, Mars likely had an ocean that covered almost half of the planet’s northern hemisphere.
Researchers believe that gaseous precipitaton is key to understanding how giant black holes affect the growth of galaxies.
Dawn's trajectory puts it on the side of Ceres that faces away from the Sun until mid-April.
The multiple images of the exploding star are caused by the powerful gravity of a foreground elliptical galaxy embedded in a massive cluster of galaxies.
The discovery suggests that planets in quadruple systems might be less rare than once thought.
With a resolution of 4 inches (11 centimeters) per pixel, these data from OSIRIS’ Narrow Angle Camera reveal highly detailed structures on Comet 67P’s surface.
Dawn will be the first mission to successfully visit a dwarf planet when it enters orbit around Ceres on Friday, March 6.
This young and remote object provides tantalizing evidence for the rapid evolution of galaxies after the Big Bang.