Astronomers have detected hundreds of galaxies lying hidden behind the Milky Way's disk, many of which belong to the so-called Great Attractor, or Norma Supercluster.
How much galaxy clusters huddle together depends in part on how fast these clusters formed — and that formation rate depends on dark matter.
The massive Smith Cloud falling toward our galaxy’s disk is likely from our galaxy, not a visitor.
Astronomers have confirmed that strong magnetic fields are frozen in place deep inside aging stars called red giants.
Astronomers looking for clones of a massive and famously unstable star in the Southern Hemisphere sky have found five in other galaxies.
Scientists and engineers gathered together to figure out what would make a good Martian landing site and what hurdles they’ll have to overcome for a 2035 launch.
Infrared observations by the Hubble Space Telescope reveal jets from forming stars.
Astronomers have detected magnetic fields writhing around the Milky Way's central black hole.
Astronomers have caught a giant elliptical galaxy “shimmering” as its stars pulsate.
The Fermi Gamma-ray Space Telescope has discovered that almost all of the highest energy photons in the Large Magellanic Cloud come from two pulsars.
NASA’s Mars orbiter MAVEN has painted a detailed picture of how the solar wind robs the Red Planet of its atmosphere.
X-ray observations suggest that flares happen when a black hole's "atmosphere" contracts and launches away from it.
Hubble observations confirm that much of the light that broke up the early universe’s hydrogen came from the smallest galaxies.
On October 28th, the Cassini spacecraft took its deepest dive through the water plume spewing from the south pole of Saturn’s moon Enceladus. It passed only 30 miles (50 kilometers) above the icy surface.
Astronomers have detected debris around a white dwarf that might be from one or more disintegrating rocky planets.
The last hurrah of a star wrenched apart by a supermassive black hole tells astronomers what the stellar crumbs are doing.
Comet 67P’s nucleus was born when two became one.
New maps from NASA’s Dawn spacecraft reveal more about both the landscape and composition of the largest asteroid.
Scientists have confirmed that water-soaked salts likely create dark seasonal lines on Mars.
Astronomers think a bright X-ray source in the galaxy NGC 1313 is a mid-size black hole.
Astronomers have confirmed that the quasar PG 1302-102 is probably a binary supermassive black hole, its members less than a tenth of a light-year apart.
Astronomers have detected waves working together in the solar atmosphere, potentially heating the gas through turbulence.
The latest image from NASA's Dawn spacecraft reveals structure in the bright spots on the asteroid 1 Ceres.
Astronomers have discovered that one galaxy of a nearby double-galaxy system has a giant, star-studded ring.
Astronomers have identified the smallest supermassive black hole ever detected in a galaxy’s center.