New simulation work suggests that galaxies like the Milky Way could be home to a dozen supermassive black holes.
Astronomers have found a peculiar object: a fluffy galaxy that has little to no dark matter.
NASA’s Juno spacecraft has found breathtaking cyclones at Jupiter’s poles and probed how deep the planet’s jet streams go.
Follow-up studies of candidates planetary systems found by NASA’s Kepler mission suggest that companion stars make some worlds appear smaller than they really are.
Astrobiology students cultivated leafy greens, sweet potatoes, and even hops in simulated Martian dirt.
Astronomers presenting at the winter American Astronomical Society meeting caution that the features often pointed to as evidence of growing natal planets could form on their own.
This week's roundup of astro news brings us a polar-orbiting planet, a novel way to measure stellar masses, and ginormous convective bubbles on a distant star.
Astronomers have discovered a supermassive black hole scarfing down gas just 690 million years after the Big Bang.
A team of astronomers has found signs of small stars forming within a few light-years of the Milky Way’s central black hole.
LIGO has detected another black hole merger, raising the tally to five.
Gas flows in the early universe may have kept clouds from collapsing too soon, enabling them to grow into massive black hole seeds.
Astronomers have detected more extremely energetic cosmic particles coming from one side of the sky than the other.
A new analysis maps out water across the lunar surface, revealing how its abundance changes with latitude.
Scientists are considering whether the mysterious “force” accelerating the universe’s expansion changes with time.
A new study suggests that the seven-planet dwarf star could be much older than the Sun.
Solar astronomers may have finally detected gravity waves in our star’s core, revealing that the Sun’s central region rotates about four times faster than the outer layers.
Astronomers have potentially detected a stratosphere in the atmosphere of a hot Jupiter.
High-powered simulations suggest that half of the material in the Milky Way could come from other galaxies.
Scientists with the gravitational-wave observatory announce another discovery, this time of a black hole merger twice as far away as previous detections.
Astronomers have confirmed the existence of the seventh planet around the ultracool dwarf star TRAPPIST-1.
Mars was once far wetter than it is now — but just how much rain fell, and when?
Astronomers have more evidence that the hidden ocean inside Saturn’s moon Enceladus is heated by hydrothermal activity.
Planetary scientists think the Sun may inadvertently create a transitory, tenuous atmosphere around the dwarf planet Ceres — and in an unexpected way.
NASA’s MAVEN mission has confirmed that the solar wind stripped the Red Planet of its atmosphere.
Astronomers have found newborn stars in gas pouring out of a galactic nucleus.