ScienceDaily: Astronomy News |
- Overhead view of Mars rover 10 years after launch
- In the zone: How scientists search for habitable planets
- Ripped apart by a black hole: Gas cloud makes closest approach to monster at center of Milky Way
| Overhead view of Mars rover 10 years after launch Posted: 17 Jul 2013 03:36 PM PDT An image from Mars orbit taken 10 years after the launch of NASA's Mars Exploration Rover Opportunity shows the long-lived rover on its trek to a new destination on Mars. |
| In the zone: How scientists search for habitable planets Posted: 17 Jul 2013 02:54 PM PDT There is only one planet we know of, so far, that is drenched with life. That planet is Earth, and it has all the right conditions for critters to thrive on its surface. Do other planets beyond our solar system, called exoplanets, also host life forms? Astronomers still don't know the answer, but they search for potentially habitable planets using a handful of criteria. Ideally, they want to find planets just like Earth, since we know without a doubt that life took root here. The hunt is on for planets about the size of Earth that orbit at just the right distance from their star -- in a region termed the habitable zone. |
| Ripped apart by a black hole: Gas cloud makes closest approach to monster at center of Milky Way Posted: 17 Jul 2013 06:53 AM PDT New observations show for the first time a gas cloud being ripped apart by the supermassive black hole at the centre of the galaxy. The cloud is now so stretched that its front part has passed the closest point and is traveling away from the black hole at more than 10 million km/h, whilst the tail is still falling towards it. |
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