ScienceDaily: Astronomy News |
- Colossal hot cloud envelopes colliding galaxies
- Saturn's youthful appearance explained
- Deep, detailed image of distant universe
- Mars Opportunity rover in standby as commanding moratorium ends
- Herschel completes its 'cool' journey in space
- NASA probe gets close-up views of large hurricane on Saturn
| Colossal hot cloud envelopes colliding galaxies Posted: 30 Apr 2013 12:15 PM PDT Scientists have completed a detailed study of an enormous cloud of hot gas enveloping two large, colliding galaxies. This unusually large reservoir of gas contains as much mass as 10 billion Suns, spans about 300,000 light years, and radiates at a temperature of more than 7 million degrees. |
| Saturn's youthful appearance explained Posted: 30 Apr 2013 10:15 AM PDT As planets age they become darker and cooler. Saturn, however, is much brighter than expected for a planet of its age -- a question that has puzzled scientists since the late 1960s. New research has revealed how Saturn keeps itself looking young and hot. |
| Deep, detailed image of distant universe Posted: 30 Apr 2013 07:59 AM PDT Staring at a small patch of sky for more than 50 hours with the ultra-sensitive Karl G. Jansky Very Large Array (VLA), astronomers have for the first time identified discrete sources that account for nearly all the radio waves coming from distant galaxies. They found that about 63 percent of the background radio emission comes from galaxies with gorging black holes at their cores and the remaining 37 percent comes from galaxies that are rapidly forming stars. |
| Mars Opportunity rover in standby as commanding moratorium ends Posted: 30 Apr 2013 07:27 AM PDT During a moratorium on commanding this month while Mars passed nearly behind the sun -- a phase called solar conjunction -- NASA's Mars Exploration Rover Opportunity entered a type of standby mode. |
| Herschel completes its 'cool' journey in space Posted: 30 Apr 2013 07:24 AM PDT The Herschel observatory, a European space telescope for which NASA helped build instruments and process data, has stopped making observations after running out of liquid coolant as expected. The European Space Agency mission, launched almost four years ago, revealed the universe's "coolest" secrets by observing the frigid side of planet, star and galaxy formation. |
| NASA probe gets close-up views of large hurricane on Saturn Posted: 30 Apr 2013 07:14 AM PDT NASA's Cassini spacecraft has provided scientists the first close-up, visible-light views of a behemoth hurricane swirling around Saturn's north pole. In high-resolution pictures and video, scientists see the hurricane's eye is about 1,250 miles (2,000 kilometers) wide, 20 times larger than the average hurricane eye on Earth. Thin, bright clouds at the outer edge of the hurricane are traveling 330 mph(150 meters per second). The hurricane swirls inside a large, mysterious, six-sided weather pattern known as the hexagon. |
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