Forty years ago, Pluto's largest moon Charon was discovered.
Studying the angles of river features on Mars helped a trio of scientists determine that the water fell from the air rather than seeping up from the ground.
IceCube Neutrino Observatory principal investigator Francis Halzen talks about how researchers worked together to track a high-energy neutrino to its source for the first time.
IceCube principle investigator Francis Halzen discusses how the unique observatory was built and the plans for its future.
The global dust storm currently raging on Mars shouldn't disrupt the touchdown of NASA's InSight lander this fall, agency officials said.
The hunt for E.T. may have gotten more difficult. New research suggests that alien life may not be as widespread as we had hoped.
A rare, midsize black hole has been spotted as it devours a star. Intermediate-mass black holes are typically challenging to spot; the new finding is the best observation to date.
The two-century-old mystery of what causes a star to dim for two years out of every 27 may be close to being solved, thanks to the ESA's Gaia spacecraft.
Astronaut Peggy Whitson has spent more time in space than any other American, and that is only one of the records she holds.
Violent collisions between two galaxies of equal sizes are more likely to power up both of the supermassive black holes at the galactic centers.
In a planetary-science first, astronomers used their knowledge of Jupiter's magnetic field to model what kinds of radio signals might be emitted naturally by the fields of smaller, rocky worlds.
Two new studies shed light on the cosmic dust that's likely responsible for the weird and dramatic dimming of "Tabby's star."
Small but rowdy space rocks pushing and jostling one another may have created the unusual orbits some astronomers cite as the signature of the hypothesized "Planet Nine," a new study suggests.
The Extremely Large Telescope (ELT) will be capable of collecting more light than all of the existing 8-to-10-meter telescopes on the planet, combined.
The Very Large Telescope (VLT) in Chile can spot objects that are 4 billion times fainter than what can be seen with the unaided eye.
China's Chang'e-4 mission will become the first mission to make a soft landing on the far side of the moon.
Ceres is a dwarf planet, the only one located in the inner reaches of the solar system. It is the largest object in the asteroid belt.
After a lifetime spent probing the hazardous environments around black holes and neutron stars, NASA's Rossi X-ray Timing Explorer met its fate, burning up in Earth's atmosphere.
For the first time, helium has been spotted in the atmosphere of an exoplanet. A new method of probing these atmospheres may make it easier to study more worlds.
Alien civilizations with technology levels similar to that of Earth could be visible with current instruments, if they've hoisted enough satellites into orbit, a new study suggests.
A collision between Mars and a large asteroid may have created the planet's two moons, Phobos and Deimos.