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Mond : Andromède et la Voie lactée seraient déjà entrées en collision

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Dublin at Night Expedition 50 Commander Shane Kimbrough of NASA shared this nighttime image of Dublin on March 17 2017 writing "Happy Spectacular Ireland captured by from Enjoy the Parade down there!

Galaxy IC 2497 and the Green Blob, a renowned cosmic structure also called “Hanny’s Voorwerp” (Dutch for “Hanny’s object”).

A Black Hole Story Told by a Cosmic Blob and Bubble

2016 A Black Hole Story Told by a Cosmic Blob and Bubble Galaxy IC 2497 and the Green Blob, a renowned cosmic structure also called “Hanny’s Voorwerp” (Dutch for “Hanny’s object”).

See Explanation.  Clicking on the picture will download  the highest resolution version available.

Whirlpool Galaxy (and companion galaxy with whom it is interacting) 31 million light years distant this pair of galaxies is located within the small constellation Canes Venatici (Martin Pugh)

The Pictor A galaxy, located nearly 500 million light years from Earth, contains a supermassive black hole at its center. A huge amount of gravitational energy is released as material swirls towards the event horizon, the point of no return for infalling material. This energy produces an enormous beam, or jet, of particles traveling at nearly the speed of light into intergalactic space. (Credit: X-ray: NASA/CXC/Univ of Hertfordshire/M.Hardcastle et al., Radio: CSIRO/ATNF/ATCA)

Blast From Black Hole in a Galaxy Far, Far Away: The Star Wars franchise has featured the fictitious “Death Star,” which can shoot powerful beams of radiation across space. The Universe, however, produces phenomena that often surpass what sc

The Kepler space telescope captures something wonderful: the shockwave of an exploding star.

This is what an exploding star looks like (for real)

Supernovae are some of the brightest objects in the sky, outshining entire galaxies with the fleeting light they produce. The huge explosions then spread gas and material over a wide area (remnants of a supernova around Cassiopeia is pictured above)

Daphnis and the Rings of Saturn Image Credit: NASA, JPL-Caltech, Space Science Institute, Cassini What's happening to the rings of Saturn? Nothing much, just a little moon making waves. The moon is 8-kilometer Daphnis and it is making waves in the Keeler Gap of Saturn's rings using just its gravity -- as it bobs up and down, in and out.

Daphnis and the Rings of Saturn Image Credit: NASA , JPL-Caltech , Space Science Institute , Cassini Explanation: What's happenin.

WOW!!! NASA has outdone itself on getting some of the best images of the universe! NASA writes: A light echo in X-rays detected by our Chandra X-ray Observatory has provided a rare opportunity to precisely measure the distance to an object on the other side of the Milky Way galaxy. The rings exceed the field-of-view of Chandra's detectors, resulting in a partial image of X-ray data.  Credits: NASA/CXC/U. Wisconsin/S. Heinz  #nasa #space #astronomy #xray #milkyway #galaxy #chandra #science

Neutron star’s echoes Circinus is a freak of the Milky Way. Located in the plane of the galaxy, Circinus is the glowing husk of a binary star system that exploded a mere years ago

IC 1871: Inside the Soul Nebula October 29 2015 via NASA This cosmic close-up looks deep inside the Soul Nebula. The dark and brooding dust clouds outlined by bright ridges of glowing gas are cataloged as IC 1871. About 25 light-years across the telescopic field of view spans only a small part of the much larger Heart and Soul nebulae. At an estimated distance of 6500 light-years the star-forming complex lies within the Perseus spiral arm of the Milky Way seen in planet Earth's skies toward…

IC 1871 - Inside the Soul Nebula - IC 1871 - En el Interior de la nebulosa del Alma.

Una serie di articoli che verranno pubblicati sulla rivista "Monthly Notices of the Royal Astronomical Society" descrive vari aspetti di un nuovo calcolo della costante di Hubble, il valore che indica il tasso di espansione dell'universo. Un team della collaborazione H0LiCOW hanno utilizzato il telescopio spaziale Hubble e altri telescopi per misurare la costante di Hubble sfruttando l'effetto di lente gravitazionale di 5 galassie. Leggi i dettagli nell'articolo!

Cosmic Lenses Support Findings on Accelerated Universe Expansion -- The Hubble constant — the rate at which the Universe is expanding — is one of the fundamental quantities describing our Universe.

Cosmic Kaleidoscope: At first glance, this cosmic kaleidoscope of purple, blue and pink offers a strikingly beautiful - and serene - snapshot of the cosmos. However, this multi-colored haze actually marks the site of two colliding galaxy clusters, forming a single object. The cluster is located about 4.3 billion light-years from Earth.  As with all galaxy clusters, this one contains a significant amount of dark matter, which leaves a detectable imprint in visible light by distorting the…

At first glance, this cosmic kaleidoscope of purple, blue and pink offers a strikingly beautiful—and serene—snapshot of the cosmos. However, this multi-colored haze actually marks the site of two colliding galaxy clusters, .

Cassiopeia A-- The colorful aftermath of a violent stellar death

Cassiopeia A - The colourful aftermath of a violent stellar death Credit: NASA, ESA, and the Hubble Heritage STScI/AURA)-ESA/Hubble Collaboration. Acknowledgement: Robert A. Fesen (Dartmouth College, USA) and James Long (ESA/Hubble)

781 отметок «Нравится», 3 комментариев — NASA Chandra X-ray Observatory (@nasachandraxray) в Instagram: «First pulsar found inside a supernova remnant! This young pulsar rotates extremely slowly, only…»

Pulsar SXP 1062 Star Space Astronomy Posters from The Astronomy Gift Shop on Zazzle. This space image is also available on many other products. Image by NASA - see product page for full image credit.

A multi-wavelength view of radio galaxy Hercules A  js

The battle for the radio spectrum Increased use of smart and broadcasting technology is causing problems for astronomers observing radio waves from space.

Hubble Space Telescope Images | NASA

Hubble Space Telescope Images

The Oddest Member of the Leo Triplet  Credit: ESO

NGC 3628 is an unbarred spiral galaxy about 35 million light-years away in the constellation Leo.

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