An enormous amount of gravity from a cluster of distant galaxies causes space to curve so much that light from more distant galaxies is bent. This “gravitational lensing” effect has allowed University of Copenhagen astronomers to observe the same exploding star –SN Requiem–in three different places in the heavens, and may help solve the mystery of cosmic expansion and reveal the nature of dark matter and dark energy.
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 Hubble mission is meticulously storing observational data in a vast archive that is freely and internationally accessible,” Dr. Jennifer Wiseman, Hubble Space Telescope Senior Project Scientist, wrote in an email to The Daily Galaxy about the iconic space telescope being back in business and able to continue on its 32nd year of discovery, with observations restarted the afternoon of Saturday, July 17. The science instruments have returned to full operation, following recovery from a computer anomaly that suspended the telescope’s observations for more than a month.
Another week of mind-bending news from the Blue Dot from NASA reports Hubble trouble to Albert Einstein’s assertion that the most incomprehensible thing about the universe is that it is comprehensible.
!n the 1920’s, most astronomers thought that all of the universe — the planets, the stars seen with the naked eye and with powerful telescopes, and fuzzy objects called nebulae — was contained within the Milky Way galaxy. Astronomer Edwin Hubble’s discovery that countless galaxies exist beyond our own Milky Way galaxy revolutionized our understanding of the universe and our place within it.
“Hubble isn’t just a satellite; it’s about humanity’s quest for knowledge,” said astronaut and former NASA Chief Scientist, John M. Grunsfeld about the iconic space telescope. Looking at Hubble’s ground-breaking “Deep Field” images that show the most distant galaxies that can be observed in visible light leaves us feeling like something else is going about its business out there.
Editor, Jackie Faherty, astrophysicist, Senior Scientist with AMNH. Jackie was formerly a NASA Hubble Fellow at the Carnegie Institution for Science. Aside from a love of scientific research, she is a passionate educator and can often be found giving public lectures in the Hayden Planetarium. Her research team has won multiple grants from NASA, NSF, and the Heising Simons foundation to support projects focused on characterising planet-like objects. She has also co-founded the popular citizen science project entitled Backyard Worlds: Planet 9 which invites the general public to help scan the solar neighbourhood for previously missed cold worlds. A Google Scholar, Faherty has over 100 peer reviewed articles in astrophysical journals and has been an invited speaker at universities and conferences across the globe. Jackie received the 2020 Vera Rubin Early Career Prize from the American Astronomical Society, an award that recognises scientists who have made an impact in the field of dynamical astronomy and the 2021 Robert H Goddard Award for science accomplishments.