This once-in-a-lifetime image shows a pair of gravitationally interacting galaxies called Arp The galaxy on the left, is relatively undisturbed, whereas the galaxy on the right, is a messy ring of intense star formation. Image: NASA/ ESA/ M.
Hubble Ultra Deep Field 2014 - Astronomers using NASA's Hubble Space Telescope have assembled a comprehensive picture of the evolving universe — among the most colorful deep space images ever captured by the telescope. - Image Credit: NASA, ESA et al
It's enough to keep you awake at night: Photographer captures beauty of the Milky Way on midnight trek to beat insomnia
Milky Way. Every star we see in the sky is part of the Milky Way, but a brighter center exists some light-years away. The Milky Way is about light-years in diameter and contains 200 to 400 billion stars.
NASA's Hubble Space Telescope has captured an image of an unusual edge-on galaxy, ESO revealing remarkable details of its warped dusty disk and showing how colliding galaxies spawn the formation of new generations of stars.
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LAST GASP: The swirling disk of matter falling into a black hole radiates intensely and shoots high-speed bursts of plasma back into the galaxy. How Black Holes Shape the Galaxies, Stars and Planets around Them: Scientific American