Tagged: galaxy

A galaxy’s overdeveloped spiral arm dominates the foreground of a stunning new image from the Gemini Observatory in Hawaii. The image captures a lopsided spiral galaxy known as NGC 772, which lies over 100 million light-years from Earth in the constellation Aries. The photograph was...

Say hello to the much-photographed Triangulum galaxy – aka Messier 33 – a face-on pinwheel of swarming suns and the second-nearest spiral galaxy to our Milky Way. This galaxy is only about 2.7 million light-years away. It’s huge, with a diameter about half that of...

Using ground-based facilities, astronomers from China and elsewhere have conducted extensive optical photometric and spectroscopic observations of the supernova SN 2017fgc, which exploded in the galaxy NGC 474. Results of the study, published June 23 on arXiv.org, indicate that this explosion is a fast-expanding Type...

Astronomers have turned a cluster of galaxies into a gargantuan magnifying lens, using it to study another galaxy, 10.7 billion light years away, in unprecedented detail. Taking advantage of a phenomenon known as “gravitational lensing,” the team of scientists, led by NASA Goddard Space Flight...

An international group of astronomers has created images with never-before-seen detail of a galaxy cluster with a black hole at its center, traveling at high speed along an intergalactic “road of matter.” The findings also support existing theories of the origins and evolution of the...

Using the Keck I telescope, Japanese astronomers have identified a massive quiescent galaxy in a distant galaxy protocluster known as SSA22. The galaxy, designated ADF22-QG1, turns out to be the most distant quiescent galaxy in a protocluster to date. The finding is reported in a...

Using NASA’s Chandra spacecraft, astronomers have inspected X-ray emission from the center of a young radio galaxy known as NGC 3894. Results of this study, presented in a paper published June 24 on the arXiv pre-print server, yield essential information that could shed more light...

Astronomers have found a mightily surprising early-universe galaxy that appears more mature than it should for its age. They announced this result on February 11, 2021, pointing out that galaxy ALESS 073.1 is located about 12 billion light-years away. That means we see this galaxy...

Scientists at the University of Copenhagen said on February 17, 2021, that their new computer models confirm the theory of pebble accretion – that is, that the planets in our solar system formed through accumulations of tiny bits of dust and ice – and that...

Astronomers discovered the mysterious signals known as fast radio bursts (FRBs) as recently as 2007. The bursts are short and strong – on average only .001 of a second long – but with as much energy in that millisecond as our sun puts out in...