Astronomy

Mean temperatures this year approached 1.5°C above the preindustrial average, making it the second hottest year after 2024

Mean temperatures this year approached 1.5°C above the preindustrial average, making it the second hottest year after 2024

Astronomers have captured images of two nova explosions only days after they exploded. The detailed images show that these explosions are more complex than thought. There are multiple outflows and, in some cases, delayed ejection of material.

In a new study, sustainability and space scientists discuss how the principles of reducing, reusing, and recycling could be applied to satellites and spacecraft.

It’s December and that means one of the best celestial events will grace the skies. The Geminid meteor shower should peak between Saturday night and Sunday morning, December 13–14.

The post Get Ready for the Geminids appeared first on Sky & Telescope.

Astronomers have acquired evidence that Omega Centauri, the largest-known globular cluster in the Milky Way, hosts an intermediate mass black hole (IMBH). These elusive objects should exist, according to theory, but have been difficult to verify. The IMBH in Omega Centauri is considered a candidate black hole, and new research examined the region with the JWST for any conclusive evidence.

New research and observations with the VLT's ERIS instrument show that some stars are following predictable orbits near Sagitarrius A-star, the Milky Way's supermassive black hole. This goes against the established idea that the black hole's enormous gravity destroys stars and gas clouds. Even a binary star system in the region seems to go about its business unaffected.

Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of our galaxy might be more suitable for life than others

Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of our galaxy might be more suitable for life than others

This composite image of the Cassiopeia A (or Cas A) supernova remnant, released Jan. 8, 2024, contains X-rays from Chandra (blue), infrared data from Webb (red, green, blue), and optical data from Hubble (red and white). A study by the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft has made the first-ever X-ray detections of chlorine and potassium in the wreckage.

Screen time has been linked to all sorts of problems, from depression and obesity to poor sleep. But how worried should you really be? Jacob Aron sifts through the evidence

Screen time has been linked to all sorts of problems, from depression and obesity to poor sleep. But how worried should you really be? Jacob Aron sifts through the evidence

It is still

Apollo 17 at Shorty Crater

Blasting outward from variable star KX Andromedae,

An example of violence on a cosmic scale, enormous

What would it look like to plunge into a monster black hole?

What's happening in the center of nearby spiral galaxy M77?

Many wonders are visible when flying over the Earth at night.

The site of the world’s worst nuclear disaster remains damaged, but so far, radiation levels outside the plant have not increased, according to officials