Record-Breaking Pulsar Shows Einstein Was Right — So Far

Record-Breaking Pulsar Shows Einstein Was Right — So Far

  Astronomers have used ESO’s Very Large Telescope, along with radio telescopes around the world, to find and study a bizarre stellar pair consisting of the most massive neutron star confirmed so far, orbited by a white dwarf star. This strange new binary system allows tests of Einstein’s theory of gravity — general relativity — [continue reading]

Bursts of Star Formation can Reduce Future Galaxy Growth

Bursts of Star Formation can Reduce Future Galaxy Growth

  Astronomers using the NASA/ESA Hubble Space Telescope have shown for the first time that bursts of star formation have a major impact far beyond the boundaries of their host galaxy. These energetic events can affect galactic gas at distances of up to twenty times greater than the visible size of the galaxy – altering [continue reading]

Anne's Picture of the Day: Red Giant U Camelopardalis

Anne’s Picture of the Day: Red Giant U Camelopardalis

April 27, 2013 U Camelopardalis, a Red Giant Image Credit: ESA/Hubble, NASA and H. Olofsson (Onsala Space Observatory) U Camelopardalis, or U Cam for short, is a bright red giant – a once Sun-like star nearing the end of its life – surrounded by a shell of gas, located about 1,400 light-years away from Earth [continue reading]

Jupiter’s Water Linked to Comet Impact

Jupiter’s Water Linked to Comet Impact

  ESA’s Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic impact of comet Shoemaker-Levy 9 in July 1994. Hubble view of the impact sites, a few days after the impacts. Image Credit: Hubble Space Telescope [continue reading]

Anne's Picture of the Day: Spiral Galaxies NGC 5963 & 5965

Anne’s Picture of the Day: Spiral Galaxies NGC 5963 & 5965

April 26, 2013 NGC 5963 & 5965, two spiral galaxies in Draco Image Credit & Copyright: Ken Crawford, Rancho Del Sol Observatory (http://www.imagingdeepsky.com) NGC 5963 (bottom) and NGC 5965 (top) are two spiral galaxies in the northern constellation of Draco, which are far apart and unrelated, and are just by chance appearing close on the [continue reading]

Anne's Picture of the Day: Planetary Nebula NGC 6881

Anne’s Picture of the Day: Planetary Nebula NGC 6881

April 25, 2013 NGC 6881, a planetary nebula in Cygnus Image Credit: ESA/Hubble & NASA NGC 6881 is a planetary nebula of about one light-year in length, located roughly some 8,000 light-years away from Earth in the constellation of Cygnus, the Swan. It is approaching us at approximately 15 kilometers per second. Despite their name, [continue reading]