LIGO Finds Lightest Black-Hole Binary

LIGO has announced the discovery of the lightest pair of black holes we’ve ever seen merge, allowing us to compare to the black holes detected by electromagnetic means.

Milky Way

A Look at the Milky Way’s Outskirts

We may be stuck in the Milky Way’s interior, but we can use distant variable stars to map out a picture of what’s happening in the outskirts of our galaxy.

Aurorae on Jupiter

A planet’s aurorae (like the northern lights on Earth) can tell us about the planet itself — but we’ve never before detected aurorae from an exoplanet. Astrobites reports on the prospect of observing aurorae from Proxima Centauri b.

nuclear star clusters

Many galaxies host extremely dense clusters of stars in their cores. Observations of these clusters help us explore how they might have formed.

collaborative authoring

Do you use collaborative document preparation software like Authorea or Overleaf? If so, submitting to AAS journals just got easier.

solar corona

Carrying Energy to the Corona with Waves

Why is the Sun’s atmosphere so much hotter than its surface? A new study explores the role of magnetic waves in heating the Sun’s corona.

NGC 1300

Feeding Black Holes Through Galactic Bars

Galactic bars channel gas into the central regions of spiral galaxies to birth new stars. Astrobites reports on whether they are also responsible for lighting up their black holes.

Neptune’s moon system is not what we would expect for a gas giant in our solar system — and its largest moon, Triton, may be to blame.

star formation

Tracing the Fuel for Forming Stars

Only a small fraction of the cold hydrogen gas in the local universe is molecular gas, able to directly fuel star formation. But is this also true at earlier times in our universe?