How a Star Cluster Ruled Out MACHOs
Are massive black holes hiding in the halos of galaxies, making up the majority of the universe’s mysterious dark matter?
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White Dwarf Surprise — Again!
Astrobites reports on a Kepler spacecraft finding: two new white dwarfs that are “outbursting” — suddenly brightening every few days before quieting down again.
Satellite Galaxies of the Milky Way
This beautiful image features Eridanus II, an ultra-faint dwarf galaxy that is orbiting the Milky Way.
Observing the Sun with NuSTAR
A high-energy telescope designed to observe distant astrophysical sources has recently been used to point much closer to home. Can it solve a few longstanding mysteries about the Sun?
Water Clouds in the Atmosphere of a Jupiter-Like Brown Dwarf
New observations have provided evidence of water clouds in the atmosphere of a brown dwarf located just 7.2 light-years away.
Mass Loss in Dying Stars
By the time a star becomes a white dwarf, much of its mass will have been lost. When does this mass loss occur and what drives it?
A Pulsar and a Disk
Recent, unusual X-ray observations from the Small Magellanic Cloud have led to an interesting model for SXP 214, a pulsar in a binary star system.
The Hunt for a Counterpart to GW150914
In September 2015, two days after the detection of GW150914, an alert went out to 63 ground- and space-based observatories. This launched the very first hunt for an electromagnetic counterpart to a gravitational wave signal.
Do Galactic Bars Buckle to Form Bulges?
New observations have caught two galaxies in the process of forming peanut-shaped bulges like the one in the center of our own Milky Way.
Featured Image: Supernova Remnants in the LMC
These vibrant images of supernova remnants in the Large Magellanic Cloud were created to explore the galaxy’s interstellar medium.
New Objects Beyond the Kuiper Belt
The search for the hypothetical Planet Nine has led to the discovery of a collection of new — and puzzling — objects located in the outer reaches of our solar system.
A Preferred Home for Disrupted Stars
A new study has examined the preferred home for tidal disruption events — the shredding of passing stars by a supermassive black hole.