Tag Archive for 'Supernova'

This image from Hubble’s Advanced Camera for Surveys is likely the best of the spiral galaxy LEDA 56779. The brilliant object at right is a star in our Milky Way Galaxy. Image credit: NASA / ESA / Hubble / N. Grogin, STScI.

Hubble Spots Lonely Star-Forming Spiral

Jul 11, 2016 by News Staff

The subject of this Hubble image is LEDA 56779, a spiral galaxy located 300 million light-years away in the constellation of Hercules. This image from...

This is a mosaic image, one of the largest ever taken by Hubble of the Crab Nebula, a 6-light-year-wide expanding remnant of a star’s supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. Image credit: NASA / ESA / J. Hester / A. Loll, Arizona State University.

Interstellar Iron Found on Moon’s Surface: Confirmation of Supernovae in Solar Neighborhood

Apr 19, 2016 by Natali Anderson

An international team of researchers, led by Dr. Gunther Korschinek from the Technical University of Munich, has detected radioactive iron-60 in samples...

This false color image shows Cassiopeia A, a remnant of a Type IIb supernova. Image credit: NASA / JPL-Caltech.

Nearby Supernovae Showered Earth with Radioactive Debris 2 to 8 Million Years Ago

Apr 8, 2016 by Enrico de Lazaro

Two international research teams have found evidence of a series of ‘near-Earth’ supernova explosions, which showered our planet with radioactive debris....

Astronomers Catch Two Supernovae in Act of Exploding

Mar 22, 2016 by Enrico de Lazaro

An international group of astronomers, led by Prof. Peter Garnavich from the University of Notre Dame, has caught two Type II supernovae at the moment...

ASASSN-15lh: Astronomers Discover Most Luminous Supernova Ever Seen

Jan 15, 2016 by News Staff

A large international team of astronomers has spotted an extremely luminous supernova in a massive galaxy 3.82 billion light-years away. An artist’s...

This image shows the spiral galaxy Messier 63, widely known as the Sunflower Galaxy. The image was taken with Hubble’s Wide Field and Planetary Camera 2. Image credit: NASA / ESA / Hubble.

Messier 63: ‘Sunflower’ Blooms in New Hubble Image

Sep 7, 2015 by News Staff

The NASA/ESA Hubble Space Telescope has produced this beautiful image of the famous galaxy Messier 63, also known as the Sunflower Galaxy. This image shows...

These Hubble images show elliptical galaxies with dark, wispy dust lanes, the signature of a recent galaxy merger. The dust is the only relic of a smaller galaxy that was consumed by the larger elliptical galaxy. The X in the images marks the location of supernova explosions that are associated with the galaxies. Each supernova may have been gravitationally kicked out of its host galaxy by a pair of central supermassive black holes. When two galaxies merge, so do their supermassive black holes. Prof Foley suggests the supernovae were stars that were once part of double-star systems. These systems wandered too close to the binary black holes, which ejected them from their galaxies. Eventually, the stars in each system moved close enough together to trigger a supernova blast. These outcast supernovae are located at various distances from their home galaxies. SN 2000ds (left) is at least 12,000 light-years from its galaxy, NGC 2768; SN 2005cz (right) is at least 7,000 light-years from its galaxy, NGC 4589. NGC 2768 resides 75 million light-years from Earth, and NGC 4589 is 108 million light-years away. Image credit: NASA / ESA / R. Foley, University of Illinois.

Astronomer Throws Light on Origins of Outcast Supernovae

Aug 16, 2015 by News Staff

Outcast supernovae that explode all alone in space present a scientific mystery. Prof Ryan Foley from the University of Illinois has developed a theory...

This artist’s impression shows a supernova and associated gamma-ray burst driven by a rapidly spinning magnetar. Image credit: ESO.

Ultra-Long Gamma-Ray Bursts are Driven by Magnetars, Astronomers Say

Jul 9, 2015 by News Staff

A team of astronomers led by Dr Jochen Greiner of the Max Planck Institute for Extraterrestrial Physics, Germany, has demonstrated a link between the bright...

A set of four rings around Circinus X-1 can be seen in this composite image where X-rays from Chandra are red, green, and blue corresponding to low, medium, and high-energy X-rays respectively, which have been combined with a view in visible light from the Digitized Sky Survey. The sharp edges are caused by the large size of the X-ray rings compared to the relatively small field-of-view of the Chandra detectors, providing only partial coverage. Image credit: NASA / CXC / University of Wisconsin-Madison / S. Heinz et al / DSS.

Circinus X-1: Astronomers Discover X-ray Rings around Neutron Star

Jun 24, 2015 by News Staff

Astronomers using data from NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton telescope have discovered a bright X-ray light echo in the form of...

This is an artist’s concept of a Type Ia supernova exploding in the intergalactic space between galaxies within a galactic cluster. Image credit: Alex Parker / NASA / SDSS.

Hubble Confirms Two Solitary Supernovae

Jun 5, 2015 by News Staff

New observations with the Advanced Camera for Surveys on the NASA/ESA Hubble Space Telescope confirm that two Type Ia supernovae discovered six years ago...

This image of Messier 84 does not show the whole galaxy but only its very interesting center, and is likely to be the best image of the region ever captured. Image credit: ESA / Hubble / NASA.

Hubble Space Telescope Sees Mysterious Galaxy Messier 84

Jun 1, 2015 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have photographed an unusual galaxy called Messier 84. This image of Messier 84 does not show the...

An image from a simulation in which a Type Ia supernova explodes, as shown in brown. The supernova material is ejected outward at a velocity of about 10,000 km per second and slams into its companion star, as shown in light blue. The collision produces an UV pulse, which is emitted from the conical hole carved out by the companion star. Image credit: Dan Kasen, University of California Berkeley.

Astronomers Observe Supernova Smash into Companion Star

May 21, 2015 by News Staff

A group of astronomers from the intermediate Palomar Transient Factory (iPTF) has witnessed a supernova smashing into a nearby white dwarf, shocking it,...

This is the core of a Type II supernova at the onset of explosion: neutrinos that are emitted from the protoneutron at the center are absorbed by the gas behind the shock front, heat up this gas, and drive turbulence; eventually an asymmetric explosion develops. Image credit: Christian Ott, California Institute of Technology / Steve Drasco, Cal Poly San Luis Obsipo.

Type II Supernovae Explode in Lopsided Fashion, Astronomers Say

May 8, 2015 by News Staff

New observations of the remnant of Supernova (SN) 1987A from NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) are confirming predictions made at...

Images of SN 2012ap and its host galaxy, NGC 1729. Image credit: D. Milisavljevic et al.

SN 2012ap: Astronomers Find ‘Missing Link’ in Supernova Family Tree

Apr 28, 2015 by News Staff

Supernova SN 2012ap is a ‘missing link’ between stellar explosions that generate gamma-ray bursts and those that don’t, says a group of astronomers...

This image shows the peculiar galaxy ESO 162-17. Image credit: ESA / Hubble / NASA.

Hubble Zooms in on Peculiar Galaxy ESO 162-17

Apr 20, 2015 by News Staff

Using the Advanced Camera for Surveys on the NASA/ESA Hubble Space Telescope, astronomers have taken a stunning image of the galaxy ESO 162-17. This image...

Astronomers have reported near-infrared interferometric measurements of the angular size of Nova Delphini 2013, starting one day after the explosion and continuing with extensive time coverage during the first 43 days. The image shows Tycho's supernova remnant. Image credit: X-ray - NASA / CXC / SAO; infrared - NASA / JPL-Caltech; optical - MPIA / Calar Alto / O.Krause et al.

Type Ia Supernovae More Diverse than Thought

Apr 13, 2015 by News Staff

Type Ia supernovae, which are bright beacons used as distance markers both for studying the expansion rate of the Universe, and for measuring cosmological...

This is a Hubble Space Telescope photo of NGC 3021. Image credit: NASA / ESA / A. Riess, STScI.

Gorgeous New Image from Hubble Space Telescope Shows Spiral Galaxy NGC 3021

Mar 30, 2015 by News Staff

Astronomers using the Advanced Camera for Surveys (ACS) on the NASA/ESA Hubble Space Telescope have captured a stunning new image of the spiral galaxy...

This image shows the Sculptor dwarf galaxy. Image credit: ESO / Digitized Sky Survey 2.

Astronomers Discover Two Extremely Old Stars in Sculptor Dwarf Galaxy

Mar 25, 2015 by News Staff

A group of astronomers led by Dr Joshua Simon from the Observatories of the Carnegie Institution of Washington has discovered two stars in the Sculptor...

This is a composite, false-color image of the supernova remnant Sagittarius A East. Image credit: R. M. Lau et al.

Supernova Dust Factory Found at Milky Way’s Galactic Center

Mar 20, 2015 by News Staff

Astronomers using NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA), the world’s largest airborne astronomical observatory, have...

An artist impression of the mass-transfer phase followed by a double-detonation supernova that leads to the ejection of US 708. While this illustration shows the supernova, bottom center, and the ejected star, left, at the same time, in reality the supernova would have been faded away long before the star reached that position. Image credit: ESA / Hubble / NASA / S. Geier.

US 708: Hypervelocity Star Ejected by Supernova Breaks Galactic Speed Record

Mar 6, 2015 by News Staff

A multinational team of astronomers led by Dr Stephan Geier from the European Southern Observatory in Garching, Germany, has determined that a hypervelocity...

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