The new version of Hubble’s deep image is shown above. In dark grey you can see the new light that has been found surrounding nearly every galaxy in this field. That light corresponds to the brightness of more than one hundred billion suns. It took researchers at the Instituto de Astrofísica de Canarias almost three years to produce this deepest image of the Universe ever taken from space by recovering a large quantity of ‘lost’ light around the largest galaxies in the iconic Hubble Ultra-Deep Field (HUDF). (more…)
The black hole–part of a binary system called V404 Cygni, located about 7,800 light-years away from Earth– is actively pulling material away from a companion star — with about half the mass of the Sun — into a disk around the invisible object creating acolossal set of rings, has been captured using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory. The giant rings, which glow in X-rays, so astronomers refer to these systems as “X-ray binaries,” have revealed new information about dust located in our Galaxy.
“It boggles the mind that over 90% of the galaxies in the Universe have yet to be studied. Who knows what we will find when we observe these galaxies with the next generation of telescopes,” says astronomer Christopher Conselice, who led the 2016 team that discovered that there are ten times more galaxies in the universe than previously thought, and an even wider space to search for extraterrestrial life.
From our tiny blue dot, the universe appears inconceivably vast. In the grand cosmic scheme of things, all the light in the observable universe provides about as much illumination as a 60-watt bulb seen from 2.5 miles away, says Marco Ajello, an astrophysicist at Clemson University, who led a team in 2018 that has measured all of the starlight ever produced throughout the history of the observable universe.
In 2018, a long-hidden and especially tumultuous chapter in the Milky Way’s history was revealed: a smash-up between the young Galaxy and a colossal companion that once orbited the Milky Way like a planet around a star. “The two collided, massively altering the Galactic disk and scattering stars far and wide,” reported Nature about data captured by the Gaia Spacecraft that radically transformed how we see the evolution of our Galaxy. “It is the last-known major crash the Galaxy experienced before it assumed the familiar spiral shape seen today.”
“The interesting thing is: we have no idea!” says Pieter van Dokkum, Sol Goldman Professor of Astronomy at Yale University, who wrote in an email to The Daily Galaxy about why ultra-diffuse galaxy DF2 contains no dark matter. “The existence of this galaxy shows that there is another pathway to creating galaxies than our standard picture, but what that might be is anyone’s guess.”