Building an Unusual White-Dwarf Duo
Could a white-dwarf duo have formed from a trio of main-sequence stars? Scientists explore the birth of an unusual binary system.
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Update On the Puzzling Boyajian’s Star
What’s causing the mysterious light-curve dips of the so-called “alien megastructure” star? Here are a few of the latest possible explanations.
Are Stellar Storms Bad News for M-Dwarf Planets?
M dwarfs like V374 Peg or even the nearby Proxima Centauri are likely to have major stellar storms. What impact could this activity have on planets in the stars’ habitable zones?
Building Up the Milky Way’s Skeleton
A new study has used a computer algorithm to uncover many of the bones that make up the skeleton of the Milky Way.
Rings from Close Encounters
Minor planets Chariklo and Chiron were recently discovered to have ring systems. Could they have formed when the minor planets got a little too close to a giant?
Monitoring Holes in the Sun’s Corona
How has the distribution of coronal holes — holes in the Sun’s upper atmosphere through which the fast solar wind escapes — changed over the last 40 years?
New Efforts to Identify Dark Matter
Is dark matter “cold”, “warm”, or “hot”? New observations are helping us identify what makes up our universe.
The (Historical) Search for Planets Orbiting Proxima Centauri
We’ve spent the last couple decades searching for planets around our nearest stellar neighbor, the red dwarf Proxima Centauri. Here’s a look at what we’ve learned so far.
When Charged Black Holes Merge
New research shows that mergers of charged black holes could generate a variety of observable signatures, from fast radio bursts to gamma-ray bursts.
A High-Velocity Collision With Our Galaxy’s Disk
A new study finds evidence that a high-velocity cloud may have smashed into the Milky Way’s disk five million years ago.