Category Astronomy/Space

A research team, led by astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC), has discovered 591 high velocity stars based on data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and Gaia, and 43 of them can even escape from the Galaxy.

The study was published online in The Astrophysical Journal Supplement Series on Dec. 17.

After the first high-velocity star was discovered in 2005, over 550 ones have been discovered with multiple telescopes in 15 years. “The 591 high-velocity stars discovered this time doubled the total number previously discovered, bringing the current total number exceeding 1,000,” said Dr...

Details revealed in galaxy’s jet 12.8 billion light-years from Earth. The supersharp radio “vision” of the National Science Foundation’s Very Long Baseline Array (VLBA) has revealed previously unseen details in a jet of material ejected at three-quarters the speed of light from the core of a galaxy some 12.8 billion light-years from Earth. The galaxy, dubbed PSO J0309+27, is a blazar, with its jet pointed toward Earth, and is the brightest radio-emitting blazar yet seen at such a distance. It also is the second-brightest X-ray emitting blazar at such a distance.

In this image, the brightest radio emission comes from the galaxy’s core, at bottom right...

As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun — a recently discovered comet.

This comet was first spotted in satellite data by Thai amateur astronomer Worachate Boonplod on the NASA-funded Sung...

New research has found that by studying all three ‘flavors’ involved in a supernova, they’ve unlocked more clues as to how and why stars die. Any Neapolitan ice cream lover knows three flavors are better than one. New research from Northwestern University has found that by studying all three “flavors” involved in a supernova, they’ve unlocked more clues as to how and why stars die.

Scientists look at neutrinos (subatomic particles) for critical information about supernova explosions. While previous research identified three “flavors” of neutrinos, many researchers continued to simplify studies on the topic by studying “vanilla” while ignoring “chocolate” and “strawberry.”

By including all three flavors in the study, Northwestern researchers have developed a deeper knowledge of d...