ScienceDaily: Astronomy News |
- NASA Mars weathercam helps find big new crater
- NASA's WISE findings poke hole in black hole 'doughnut' theory
- First broadband wireless connection ... to the moon: Record-shattering Earth-to-Moon uplink
| NASA Mars weathercam helps find big new crater Posted: 22 May 2014 01:29 PM PDT Researchers have discovered on the Red Planet the largest fresh meteor-impact crater ever firmly documented with before-and-after images. The images were captured by NASA's Mars Reconnaissance Orbiter. The crater spans half the length of a football field and first appeared in March 2012. The impact that created it likely was preceded by an explosion in the Martian sky caused by intense friction between an incoming asteroid and the planet's atmosphere. |
| NASA's WISE findings poke hole in black hole 'doughnut' theory Posted: 22 May 2014 01:23 PM PDT A survey of more than 170,000 supermassive black holes, using NASA's Wide-field Infrared Survey Explorer (WISE), has astronomers reexamining a decades-old theory about the varying appearances of these interstellar objects. The unified theory of active, supermassive black holes, first developed in the late 1970s, was created to explain why black holes, though similar in nature, can look completely different. Some appear to be shrouded in dust, while others are exposed and easy to see. |
| First broadband wireless connection ... to the moon: Record-shattering Earth-to-Moon uplink Posted: 22 May 2014 07:49 AM PDT Scientists have prepared new details and the first comprehensive overview of the on-orbit performance of their record-shattering laser-based communication uplink between the moon and Earth, which beat the previous record transmission speed last fall by a factor of 4,800. |
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