ScienceDaily: Astronomy News |
- Carbon monoxide predicts 'red and dead' future of gas guzzler galaxy
- NASA Mars Orbiter views rover crossing into new zone
- Astronomers bring the third dimension to a doomed star's outburst
- Stretching forces shaped Jupiter moon's surface, laboratory model suggests
- Sun sends more 'tsunami waves' to Voyager 1
- Something is amiss in the Universe: Cosmic accounting reveals missing light crisis
- A hotspot for powerful cosmic rays, most energetic particles in the universe
| Carbon monoxide predicts 'red and dead' future of gas guzzler galaxy Posted: 08 Jul 2014 02:32 PM PDT Astronomers have studied the carbon monoxide in a galaxy over 12 billion light years from Earth and discovered that it's running out of gas, quite literally, and headed for a 'red and dead' future. The galaxy, known as ALESS65, was observed by the Atacama Large Millimeter Array (ALMA) in 2011 and is one of fewer than 20 known distant galaxies to contain carbon monoxide. |
| NASA Mars Orbiter views rover crossing into new zone Posted: 08 Jul 2014 12:43 PM PDT NASA Mars rover Curiosity has driven out of the ellipse, approximately 4 miles wide and 12 miles long (7 kilometers by 20 kilometers), that was mapped as safe terrain for its 2012 landing inside Gale Crater. |
| Astronomers bring the third dimension to a doomed star's outburst Posted: 08 Jul 2014 10:19 AM PDT In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a team of astronomers has used extensive new observations to create the first high-resolution 3-D model of the expanding cloud produced by this outburst. |
| Stretching forces shaped Jupiter moon's surface, laboratory model suggests Posted: 08 Jul 2014 10:18 AM PDT Processes that shaped the ridges and troughs on the surface of Jupiter's icy moon Ganymede are likely similar to tectonic processes seen on Earth, according to a team of researchers. To arrive at this conclusion, the team subjected physical models made of clay to stretching forces that simulate tectonic action. |
| Sun sends more 'tsunami waves' to Voyager 1 Posted: 08 Jul 2014 09:55 AM PDT NASA's Voyager 1 spacecraft has experienced a new "tsunami wave" from the sun as it sails through interstellar space. Such waves are what led scientists to the conclusion, in the fall of 2013, that Voyager had indeed left our sun's bubble, entering a new frontier. |
| Something is amiss in the Universe: Cosmic accounting reveals missing light crisis Posted: 08 Jul 2014 09:17 AM PDT Something is amiss in the Universe. There appears to be an enormous deficit of ultraviolet light in the cosmic budget. The vast reaches of empty space between galaxies are bridged by tendrils of hydrogen and helium, which can be used as a precise 'light meter.' In a recent study a team of scientists finds that the light from known populations of galaxies and quasars is not nearly enough to explain observations of intergalactic hydrogen. The difference is a stunning 400 percent. |
| A hotspot for powerful cosmic rays, most energetic particles in the universe Posted: 08 Jul 2014 06:29 AM PDT An observatory found a 'hotspot' beneath the Big Dipper emitting a disproportionate number of the highest-energy cosmic rays. The discovery moves physics another step toward identifying the mysterious sources of the most energetic particles in the universe. |
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