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In this schematic illustration of the material ejected from SN 2007bi, the radioactive nickel core (white) decays to cobalt, emitting gamma rays and positrons that excite surrounding layers (textured yellow) rich in heavy elements like iron. The outer layers (dark shadow) are lighter elements ...
Physical Science
This close-up of an area in the northwest region of the large Iris Nebula seems to be clogged with cosmic dust. With bright light from the nearby star HD 200775 illuminating it from above, the dust resembles thick mounds of billowing cotton. It is actually made up of tiny particles of solid ...
Physical Science
Edwin Hubble
ESO PR Photo 46a/09 Black hole zapping a galaxy into existence ESO PR Photo 46b/09 Revisiting the quasar without a home ESO PR Video 46a/09 How do quasars get dressed? Which come first, the supermassive black holes that frantically devour matter or the enormous galaxies ...
Physical Science
The European Space Agency has today (25th Nov) released spectacular new observations from the Herschel Space Observatory, including the UK-led SPIRE instrument. Spectrometers on board all three Hershel instruments have been used to analyse the light from objects inside our galaxy and from other ...
Physical Science
In Cygnus X-3, an accretion disk surrounding a black hole or neutron star orbits close to a hot, massive star. Gamma rays (purple, in this illustration) likely arise when fast-moving electrons above and below the disk collide with the star's ultraviolet light. Fermi sees more of this emission ...
Physical Science
Saturn's moon Prometheus, orbiting near the streamer-channels it has created in the thin F ring, casts a shadow on the A ring in this image taken a little more than a week after the planet's August 2009 equinox. Image credit: NASA/JPL/Space Science Institute Full image and caption The ...
Physical Science
Saturn
Cassini
NASA
ESO PR Photo 45a/09 The star cluster Terzan 5 ESO PR Photo 45b/09 Around star cluster Terzan 5 ESO PR Video 45a/09 Zooming on Terzan 5 Peering through the thick dust clouds of our galaxy’s "bulge" (the myriads of stars surrounding its centre), and revealing an amazing amount of ...
Physical Science
Milky Way
This video, in annotated and unannotated versions, shows the tallest known auroras in the solar system, rippling high above Saturn. Image credit: NASA/JPL/Space Science Institute Full image and caption (videos) PASADENA, Calif. – In the first video showing the auroras above the northern ...
Physical Science
Saturn
Cassini
This image shows two young brown dwarfs, objects that fall somewhere between planets and stars in terms of their temperature and mass. Image credit: NASA/JPL-Caltech/Calar Alto Obsv./Caltech Sub. Obsv. Full resolution unannotated jpeg (845 Kb) Full resolution tiff (3,377 Kb) This ...
Physical Science
Credit X-ray: NASA/CXC/SAO/F.Seward; Optical: NASA/ESA/ASU/J.Hester & A.Loll; Infrared: NASA/JPL-Caltech/Univ. Minn./R.Gehrz JPEG (416.6 kb) Tiff (36.9 MB) PS (15.5 MB) More Images Download Desktop Zoom-In (flash) Great Observatories Composite Image of Crab Nebula (Runtime: ...
Physical Science
NASA
ESO PR Photo 44a/09 The “meal” of Centaurus A ESO PR Photo 44b/09 The “meal” of Centaurus A ESO PR Video 44a/09 Visible and infrared views of giant, cannibal galaxy Centaurus A ESO PR Video 44b/09 Inside Centaurus A Watching a Cannibal Galaxy Dine A new technique ...
Physical Science
In this illustration, the multicolored (blue and green) bubble represents the new measurements of the emission of particles known as energetic neutral atoms. Image credit: NASA/JPL/JHUAPL Full image and caption NASA's Cassini spacecraft created this image of the bubble around our solar ...
Physical Science
Cassini
NASA
Still an astrophysical mystery, the evolution of the bulges in spiral galaxies led astronomers to the edge-on galaxy NGC 4710. When staring directly at the centre of the galaxy, one can detect a faint, ethereal "X"-shaped structure. Such a feature, which astronomers call a "boxy" or ...
Physical Science
The panels show two possibilities for the bizarre orbit of HAT-P-7b. The top panel shows a "polar" orbit in which the planet goes over the north and south poles of the star. The bottom panel shows a "retrograde" orbit in which the planet revolves in the opposite direction as the star's ...
Physical Science
Discovery
ESO PR Photo 43a/09 The expanding shell around V445 Puppis ESO PR Photo 43b/09 Around the nova V445 Puppis annotated ESO PR Photo 43c/09 Around the nova V445 Puppis ESO PR Photo 43d/09 Shell around V445 Puppis (March 2005) ESO PR Photo 43e/09 Shell around V445 Puppis ...
Physical Science
Artist's conception of the "boiling disk" surrounding the massive young stellar object known as Orion Source I. A disk of hot, ionized gas surrounds the central star, blocking our view. A cool wind of gas is driven from the upper and lower surfaces of the disk (as indicated by the colored ...
Physical Science
ESO PR Photo 42a/09 Burning lithium inside a star A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing “lithium mystery” observed in the Sun to the presence of planetary systems. Using ESO’s successful HARPS spectrograph, ...
Physical Science
The Universe’s infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University. The findings show that “stellar nurseries” within the first galaxies gave birth to stars at a much more rapid rate than ...
Physical Science
View larger image Swift X-ray observations of galaxy NGC 5408 indicate its ultraluminous X-ray source undergoes periodic changes every 115.5 days. This cycle, astronomers suspect, is linked to the orbit of a donor star around a middleweight black hole, as shown in this artist's view. ...
Physical Science
Credit X-ray: NASA/CXC/UMass/D. Wang et al.; Optical: NASA/ESA/STScI/D.Wang et al.; IR: NASA/JPL-Caltech/SSC/S.Stolovy JPEG (390.1 kb) Tiff (61.3 MB) PS (36.3 MB) More Images Zoom-In (flash) Pan of the Galactic Center - (Runtime: 01:00) More Animations In celebration of the ...
