#galaxies – onsuggest

PBS Space Time

NASA’s Chandra Finds Source of Star’s Mysterious Outbursts

Using NASA’s Chandra X-ray Observatory, astronomers have discovered what is triggering repeated outbursts from a giant, unstable star. A new study, published Monday in the latest issue of The Astrophysical Journal, details the discovery of a previously hidden companion object that keeps pulling material away from the massive star every 113 days as they orbit […]

NASA Breaking News · EN

Nearby Dwarf Galaxies Show Surprising Lack Of Oxygen, Says Paper

A new study of more than three dozen dwarf galaxies has surprised researchers with just how little oxygen they have been able to retain over cosmic time. The results reveal that we still have major gaps in our understanding of galaxy evolution.

Universe Today · EN

Tiny galaxies lose most of their oxygen. No one knows where it goes.

NASA's Hubble Space Telescope finds dwarf galaxies keep just 11 percent of their oxygen on average. Where the rest went is unknown.

Mashable · EN

The ELT Can Probe Ultra-Diffuse Galaxies and Their Dark Matter Mysteries

Ultra-Diffuse Galaxies are strange because they're as large as the Milky Way, but have far fewer stars. It's as if they're puffed up for some reason. Determining what's going on with them could help confirm the Lambda-CDM model. A new proposed instrument for the Extremely Large Telescope could give astronomers their best look yet at these strange galaxies.

Universe Today · EN

We Found Galaxies Too OLD For The Universe!

PBS Space Time · EN

NASA’s Hubble Uncovers Case of Missing Oxygen in Nearby Dwarf Galaxies

NASA’s Hubble studied 37 nearby dwarf galaxies and found that much of the oxygen they expected to see is missing.

NASA Breaking News · EN