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Astronomers Find 'Lost' Supernova
March 7, 2013 — Supernova explosions of massive stars are common in spiral galaxies like the Milky Way, where new stars are forming all the time. They are almost never seen in elliptical galaxies where star ... > full story -
Hubble Finds 'Birth Certificate' of Oldest Known Star
March 7, 2013 — Astronomers have taken an important step closer to finding the birth certificate of a star that's been around for a very long time. The star could be as old as 14.5 billion years (plus or minus 0.8 ... > full story -
Universe Measured More Accurately Than Ever Before: New Results Pin Down Distance to Galaxy Next Door
March 6, 2013 — After nearly a decade of careful observations astronomers have measured the distance to our neighboring galaxy, the Large Magellanic Cloud, more accurately than ever before. This new measurement also ... > full story -
Gravitational Telescope Creates Space Invader Mirage
March 5, 2013 — The NASA/ESA Hubble Space Telescope is one of the most powerful available to astronomers, but sometimes it too needs a helping hand. This comes in the form of Einstein's general theory of relativity, ... > full story -
Black Hole Collision May Have Sparked Celestial Fireworks in the Milky Way Several Million Years Ago
March 1, 2013 — There is growing evidence that several million years ago the center of the Milky Way galaxy was site of all manner of celestial fireworks and a pair of astronomers propose that a single event -- a ... > full story -
NASA's NuSTAR Helps Solve Riddle of Black Hole Spin
February 27, 2013 — Two X-ray space observatories, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency's XMM-Newton, have teamed up to measure definitively, for the first time, the spin ... > full story -
Journey to the Limits of Space-Time: Black Hole Simulations on Supercomputers Present New View of Jets and Accretion Disks
February 21, 2013 — Black holes shape the growth and death of the stars around them through their powerful gravitational pull and explosive ejections of energy. In a recent article, researchers predicted the formation ... > full story -
Simple View of Gravity Does Not Fully Explain the Distribution of Stars in Crowded Clusters
February 20, 2013 — Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of ... > full story -
Sweeping Dust from a Cosmic Lobster
February 20, 2013 — Located around 8000 light-years away in the constellation of Scorpius (The Scorpion), NGC 6357 -- sometimes nicknamed the Lobster Nebula due to its appearance in visible-light images -- is a region ... > full story -
3-D Observations of the Outflow from an Active Galactic Nucleus
February 20, 2013 — Quasars are bright central regions of some distant galaxies. Their luminosities are often hundreds of times greater than those of their host galaxies (Note 2). Scientists believe that their light ... > full story
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