Using the most advanced telescopes on Earth and in orbit, scientists like Dr. Rebecca McElroy have gained unprecedented access to nearby galaxies, investigating how clouds of cold gas coalesce into hot balls of nuclear fusion giving birth to stars and stunning galactic fireworks. Breathtaking images of galaxies close to the Milky Way have been released ...
A study, led by researchers at the Instituto de Astrofísica de Canarias (IAC) and carried out with OSIRIS, an instrument on the Gran Telescopio Canarias (GTC, or Grantecan), has found the most densely populated cluster of galaxies in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light-years ...
A team of astronomers at the University of Hawaiʻi at the Mānoa Institute for Astronomy (IfA) has produced the world’s largest three-dimensional astronomical imaging catalog of stars, galaxies, and quasars. The team used data from UH’s Panoramic Survey Telescope and Rapid Response System, or Pan-STARRS1 (PS1), on Haleakalā. The PS1 3π survey is the world’s ...
When you look up at the night sky at the galaxies, how do you know whether the specks of light that you see are bright and far away, or relatively faint and close by? One way to find out is to compare how much light the object actually emits to how bright it appears. The ...
Computer simulations are showing astrophysicists how massive clumps of gas within galaxies scatter some stars from their orbits, eventually creating the smooth, exponential fade in the brightness of many disk galaxies. Researchers from Iowa State University, the University of Wisconsin-Madison, and IBM Research have advanced studies they started nearly 10 years ago. They originally focused ...
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