Galaxy cluster collision

Radio Relics in Cluster Abell 2744

Multi wavelength composite astronomical image using data from the Jansky Very Large Array, Chandra X-ray Observatory, and optical data from the VLT and Subaru Telescopes.

Abell 2744

Different Wavelengths in Abell 2744

Multi wavelength composite astronomical image using data from the Jansky Very Large Array, Chandra X-ray Observatory, and optical data from the VLT and Subaru Telescopes. Animated GIF cycles through the individual images (radio, X-ray, optical) of Abell 2744.

VLA image of Abell 2744

Abell 2744, Radio Only

Radio-only image of Abell 2744 region, showing radio-emitting features caused by subatomic particles accelerated to high speeds by the collisions of giant clusters of galaxies.

Before and after radio detection.
Infant stars in IRAS 16293-2422

ALMA Finds Organohalogen Methyl Chloride Around Infant Stars

Organohalogen methyl chloride discovered by ALMA around the infant stars in IRAS 16293-2422. These same organic compounds were discovered in the thin atmosphere surrounding 67P/C-G by the Rosetta space probe. The background image of the Rho Ophiuchi cloud complex is from NASA’s Wide-field Infrared Survey Explorer (WISE).

ALMA image of U Antliae shell

Aging Star Blows Off Smoky Bubble

This ALMA image reveals much finer structure in the U Antliae shell than has previously been possible. Around 2700 years ago, U Antliae went through a short period of rapid mass loss. During this period of only a few hundred years, the material making up the shell seen in the new ALMA data was ejected at high speed. Examination of this shell in further detail also shows some evidence of thin, wispy clouds known as filamentary substructures.