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.

Artist’s illustration of the merger of two compact objects, which emit gravitational waves as they inspiral. If the compact objects are not both black holes, an electromagnetic signature may also be created by the merger. [NASA/D. Berry (CXC)]

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.

Milky Way bulge

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.

LMC supernova remnants

These vibrant images of supernova remnants in the Large Magellanic Cloud were created to explore the galaxy’s interstellar medium.

Kuiper belt

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.

NGC 3156

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.

Magellanic System

A recent stellar arc discovered in the Large Magellanic Cloud’s outskirts might be a clue to this dwarf galaxy’s collisional past.

Carina nebula

Can protoplanetary disks form and be maintained around low-mass stars in the harsh environment of a highly active, star-forming nebula?

persistence map

What if there were a better way to analyze a comet’s tail, the dimming of the Sun’s surface, or the path of material in a bright solar eruption?