Astronomers using Hubble have recorded a star getting swallowed by a giant black hole. Hubble didn’t observe the mayhem directly, but captured spectral fingerprints that provide clues as to how a star gets shredded as it is devoured.
How did the Butterfly Nebula get its wings? It’s complicated
Something is amiss in the Butterfly Nebula. When astronomers compared images from 2009 & 2020, they saw dramatic changes in its “wings.” Powerful winds are driving complex alterations of nebular material. It’s unknown how such activity is possible in what should be a “largely moribund star with no remaining fuel.”
Old and new stars paint very different pictures of the Triangulum Galaxy
Scientists have discovered something unexpected about the Triangulum galaxy: In this satellite galaxy, a close companion of the much larger Andromeda galaxy, old and new stars occur in separate parts of the its structure, something not seen in galaxies like our own and so far not reporter for other satellite galaxies.
The seven-year photobomb: Distant star’s dimming was likely a ‘dusty’ companion getting in the way, astronomers say
Astronomers discovered that the star Gaia17bpp gradually brightened over a 2 1/2-year period. But follow-up analyses revealed that the star itself wasn’t changing. Instead, it’s likely part of a rare type of binary system. Its apparent brightening was the end of a years-long eclipse by an unusual, “dusty” stellar companion.
Media Tip: Scientists use Argonne accelerator to study star-like environment created during National Ignition Facility laser shots
The recent achievement of fusion ignition at the National Ignition Facility (NIF) marks a monumental scientific step in controlling the physics involved in the quest for future limitless clean energy.
Supergiant Atmosphere of Antares Revealed by Radio Telescopes
An international team of astronomers has created the most detailed map yet of the atmosphere of the red supergiant star Antares. The unprecedented sensitivity and resolution of both the Atacama Large Millimeter/submillimeter Array (ALMA) and the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) revealed the size and temperature of Antares’ atmosphere from just above the star’s surface, throughout its chromosphere, and all the way out to the wind region.
Black Hole Eats Star
Join Melissa Hoffman of the National Radio Astronomy Observatory for a tour of one of the most disruptive events in Universe.