Galactic Pyrotechnics From 23 Million Light Years Away

From NASA Dec. 31, 2019 Galactic Pyrotechnics From 23 Million Light Years Away A galaxy about 23 million light years away is the site of impressive, ongoing fireworks. Rather than paper, powder and fire, this galactic light show involves a giant black hole, shock waves and vast reservoirs of gas. This galactic fireworks display is…

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Hubble’s Close-Up of Spiral’s Disk, Bulge

From NASA Dec. 20, 2019 This image from the NASA/ESA Hubble Space Telescope shows IC 2051, a galaxy in the southern constellation of Mensa (the Table Mountain) lying about 85 million light-years away. It is a spiral galaxy, as evidenced by its characteristic whirling, pinwheeling arms, and it has a bar of stars slicing through…

New clues on dark matter from the darkest galaxies

A study by SISSA provides important information on its composition and on its interaction with luminous matter Scuola Internazionale Superiore di Studi Avanzati They are called low-surface-brightness galaxies and it is thanks to them that important confirmations and new information have been obtained on one of the largest mysteries of the cosmos: dark matter. “We…

Hubble Views Galaxy’s Dazzling Display

From NASA Dec. 13, 2019 Hubble Views Galaxy’s Dazzling Display The galaxy is the eponymous member of the NGC 3175 group, which has been called a nearby analog for the Local Group. The Local Group contains our very own home galaxy, the Milky Way, and around 50 others — a mix of spiral, irregular and…

Hubble studies gamma-ray burst with highest energy ever seen

NASA/Goddard Space Flight Center NASA’s Hubble Space Telescope has given astronomers a peek at the location of the most energetic outburst ever seen in the universe — a blast of gamma-rays a trillion times more powerful than visible light. That’s because in a few seconds the gamma-ray burst (GRB) emitted more energy than the Sun…

Hubble Spots a Curious Spiral

From NASA Nov. 15, 2019 Hubble Spots a Curious Spiral The universe is simply so vast that it can be difficult to maintain a sense of scale. Many galaxies we see through telescopes such as the NASA/ESA Hubble Space Telescope, the source of this beautiful image, look relatively similar: spiraling arms, a glowing center, and…

Hubble Finds Medusa in the Sky

From NASA Oct. 24, 2019 Hubble Finds Medusa in the Sky Often referred to by its somewhat drier New General Catalogue designation of NGC 4194, this was not always one entity, but two. An early galaxy consumed a smaller gas-rich system, throwing out streams of stars and dust into space. These streams, seen rising from…

Hubble’s Portrait of Star’s Gaseous Glow

From NASA Hubble’s Portrait of Star’s Gaseous Glow Although it looks more like an entity seen through a microscope than a telescope, this rounded object, named NGC 2022, is certainly not algae or tiny, blobby jellyfish. Instead, it is a vast orb of gas in space, cast off by an aging star. The star is…

More unsettled science-previously unseen ancestors of elliptical galaxies

ALMA finds previously unseen ancestors of elliptical galaxies News Release from the Atacama Large Millimetre/submillimetre Array Astronomy Now An artist’s impression of remote galaxies seen by ALMA that are not visible to the Hubble Space Telescope. Astronomers suspect the previously unknown galaxies are ancestors of the massive elliptical galaxies visible in the more recent universe.…

Hubble Peers at Galactic Cherry Blossoms

July 12, 2019 From NASA The galaxy NGC 1156 resembles a delicate cherry blossom tree flowering in springtime in this Hubble image. The many bright “blooms” within the galaxy are in fact stellar nurseries — regions where new stars are springing to life. Energetic light emitted by newborn stars in these regions streams outwards and…