ScienceDaily: Astronomy News |
- SOHO shows new images of Comet ISON
- Fast, furious, refined: Smaller black holes can eat plenty
- Figure eights and peanut shells: How stars move at the center of the galaxy
- Fiery drama of star birth, death
| SOHO shows new images of Comet ISON Posted: 27 Nov 2013 02:04 PM PST As Comet ISON heads toward its closest approach to the sun -- known as perihelion -- on Nov. 28, 2013, scientists have been watching through many observatories to see if the comet has already broken up under the intense heat and gravitational forces of the sun. |
| Fast, furious, refined: Smaller black holes can eat plenty Posted: 27 Nov 2013 02:04 PM PST Gemini observations support an unexpected discovery in the galaxy Messier 101. A relatively small black hole (20-30 times the mass of our sun) can sustain a hugely voracious appetite while consuming material in an efficient and tidy manner -- something previously thought impossible. The research also affects the long quest for elusive intermediate-mass black holes. |
| Figure eights and peanut shells: How stars move at the center of the galaxy Posted: 27 Nov 2013 08:03 AM PST Two months ago astronomers created a new 3-D map of stars at the center of our Galaxy (the Milky Way), showing more clearly than ever the bulge at its core. Previous explanations suggested that the stars that form the bulge are in banana-like orbits, but a new article suggests that the stars probably move in peanut-shell or figure of eight-shaped orbits instead. |
| Fiery drama of star birth, death Posted: 27 Nov 2013 08:01 AM PST The Large Magellanic Cloud is one of the closest galaxies to our own. Astronomers have now used the power of ESO's Very Large Telescope to explore one of its lesser known regions. This new image shows clouds of gas and dust where hot new stars are being born and are sculpting their surroundings into odd shapes. But the image also shows the effects of stellar death — filaments created by a supernova explosion. |
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