Hubble spies curious galaxy moving a little closer

This Hubble image stars Messier 90, a beautiful spiral galaxy located roughly 60 million light-years from the Milky Way in the constellation of Virgo (the Virgin). The galaxy is part of the Virgo Cluster, a gathering of galaxies ...

World celebrates centenary of confirmation of relativity

Celebrations are underway across the globe to commemorate 100 years since a UK-led expedition confirmed Einstein's general theory of relativity. The theory fundamentally changed our understanding of physics and astronomy, ...

New catalogue of 12,000 X-ray spectral lines

X-ray sources in the sky radiate "bar codes" revealing their properties. These bar codes consist of narrow peaks and troughs within the source's spectrum. The RGS instrument on the satellite XMM-Newton was built to find these ...

Video: 100 years of gravity

One hundred years ago this month, observations performed during a total solar eclipse proved for the first time the gravitational bending of light predicted by Albert Einstein's new theory of gravity, general relativity. ...

New ultra diffuse galaxy found in the NGC 5846 group

Astronomers have detected a new ultra diffuse galaxy (UDG) located most likely in the NGC 5846 galaxy group. The discovery is part of the ongoing VEGAS survey aimed at investigating early-type galaxies in a range of environments. ...

Chemistry of stars sheds new light on the Gaia Sausage

Chemical traces in the atmospheres of stars are being used to uncover new information about a galaxy, known as the Gaia Sausage, which was involved in a major collision with the Milky Way billions of years ago.

Galaxies as 'cosmic cauldrons'

Star formation within interstellar clouds of gas and dust, so-called molecular clouds, proceeds very rapidly yet highly inefficiently. Most of the gas is dispersed by stellar radiation, revealing galaxies to be highly dynamic ...

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