Astronomers have discovered the largest galaxy ever seen, with the size of 16 million light-years across in space! The total width of the Alcyoneus Galaxy is 100 times larger than our galaxy, the Milky Way, and 4 times larger than the largest known galaxy, IC 1101. In other words, this structure covers such a large area in space that even if we could travel at the speed of light, it would take us 16 million years to get from one end of this radio galaxy's domain to the other.
But is it possible for a galaxy to reach such a terrifying expanse? The way to answer this question is to first understand radio galaxies. Because radio galaxies are quite different from the celestial objects that first come to mind when we say galaxies.
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📚 Resources and References:
1. Astronomers find largest radio galaxy ever: www.universite...
2. The discovery of a radio galaxy of at least 5 Mpc: arxiv.org/abs/...
3. LOFAR: www.astron.nl/...
4. What are Radio Telescopes?: public.nrao.ed...
5. Active Galactic Nuclei: Long Wavelength Astrophysics (Taylan Kasar)
6. Active Galaxies: imagine.gsfc.n...
📷 Images and Media:
NASA, ESA
ESO/spaceengine.org
NASA's Scientific Visualization Studio
Goddard Space Flight Center/Conceptual Image Lab
NRAO, AUI, NSF
JPL-Caltech
NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA)
M.S.S.L. Oei et al., Astronomy & Astrophysics, 2022
#alcyoneus #galaxy #astronomy
15 окт 2024