Hidden Pair of Supermassive Black Holes
Could a pair of supermassive black holes (SMBHs) be lurking at the center of the galaxy Mrk 231?
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An Explanation for Saturn’s Hexagon
For over three decades, we’ve been gathering observations of the mysterious hexagonal cloud pattern encircling Saturn’s north pole. Now, researchers believe they have a model that can better explain its formation.
Einstein@Home Finds an Elusive Pulsar
Personal-computer time volunteered through the Einstein@Home project has resulted in the discovery of a pulsar that has been hiding from observers for years.
Hot-Jupiter Breakfasts Realign Stars
A new model proposes that early stellar ingestion of planets might be very common, and this can have significant effect on the snacking star.
Killing Star Formation in Satellite Galaxies
When a dwarf galaxy falls into the halo of a large galaxy like the Milky Way, how is star formation in the dwarf affected?
Smallest Black Hole in Galactic Nucleus Detected
Astronomers have reported the detection of the smallest black hole ever observed in a galactic nucleus. Hosted in the center of a dwarf galaxy, it weighs in at 50,000 solar masses.
Star Formation at the Galactic Center
A possible signature of low-mass star formation has recently been found just two light-years from the black hole at the center of our galaxy — a region that was previously thought to be too hostile for such activity.
Have We Finally Found Pop III Stars?
Have we made the first direct observation of the earliest stars formed in our universe? A collaboration using ESO’s Very Large Telescope believes so!
Forming Disk Galaxies Early in the Universe
What were galaxies like in the first 500 million years of the universe? The earliest massive galaxies may have been mostly disk-shaped, rather than the compact clumps previously predicted.
Prior Clues of Internal Activity on Pluto
New Horizons scientists predicted that Pluto may have subsurface activity — even before any data came back from the mission.
Spin Complicates Eccentric BH-NS Mergers
When a neutron star has a glancing encounter with a black hole, its spin has a significant effect on the outcome.
Planet Imager Discovers Young Kuiper Belt
A debris disk just discovered around a nearby star is the closest thing yet seen to a young version of the Kuiper belt.