Triton passed in front of a star, a process called occultation, which provided researchers an opportunity to better study its atmosphere.
Powerful bursts of radiation from black holes strip away the atmospheres of cold, gaseous exoplanets, leaving behind only a bare, rocky core heavier than Earth.
The orbits and downward tilt of objects in the Kuiper Belt beyond Neptune might be best explained by the existence of Planet Nine, the hypothetical planet believed to be 10 times more massive than Earth.
A new roadmap to where water exists on the surface of the moon could potentially offer resources to astronauts as drinking water or to produce fuel.
Cassini captured an up-close view of a spiral density wave visible in Saturn's B ring that has formed from the gravitational pull of Saturn's moons.
Expect to see “polar plums” and “helmet streamers” during the total solar eclipse on August 21.
Flying in a pair WB-57F jets at an altitude of over 50,000 feet, researchers will study the sun’s corona and the surface of Mercury during the August 21 eclipse.
Swells of lava spreading across the surface of the molten lake at Loki Patera could help explain the periodic changes in brightness seen by astronomers.
The event, captured by telescopes in Chile, took place roughly 500 years ago in the Orion Molecular Cloud 1, located about 1,500 light-years from Earth.
A curious change in hue on the gas giant's "hexagon" presents a new puzzle.