AAS News

AAS 246: Day 2

On Day 2 of AAS 246, we heard about active galactic nucleus feedback, learned how planets fare in systems with multiple stars, and saw fantastic new images of the Sun.

A rendering of a small star surrounded by a ring of gas and some larger asteroids.
Features

Finishing Off an Asteroid

Astronomers may have spotted the crumbs of a recently eaten asteroid around a white dwarf star.

The cosmic web

Using fast radio bursts, researchers have measured just how empty cosmic voids truly are.

Arp 142

Astrobites reports on a whodunit of cosmic significance: who killed star formation in massive elliptical galaxies?

solar corona during a solar eclipse

Citizen scientists from the Dynamic Eclipse Broadcast Initiative recorded nearly an hour of coronal behavior during the 8 April 2024 solar eclipse.

240P
Features

Spying on a Split Comet

A recent study investigated the possible mechanisms that caused a known Jupiter-family comet to split in two.

Illustration of gravitational waves emanating from a pair of black holes approaching a merger

A recent Focus Issue of the Astrophysical Journal Letters introduces the fourth version of the gravitational wave transient catalog from the LIGO, Virgo, and KAGRA collaborations.

Messier 17

Astrobites reports on the interplay between the interstellar medium and star formation in simulated galaxies.

Star formation in the early universe.

What powers the prominent helium emission from Hebe, a gas clump seen just 450 million years after the Big Bang?