|arya||Date: Friday, 24-July-2015, 7:21 PM | Message # 1|
|NASA releases first complete image of sunlit Earth in four decades |
New Blue Marble
It was meant to be the perfect blend of the space age with the Internet age – an opportunity to inspire youth while monitoring a planet facing the threat of climate change. But there were plenty of twists and turns for NASA’s Deep Space Climate Observatory. Seventeen years later, reports Ivan Semeniuk, it’s time to see the result.
In recent decades, space flight has given humanity a chance to gaze down on all of the planets and plenty of other assorted worlds – with Pluto the latest. But nowhere else in our solar system is there a planet like this. Earth has an atmosphere that is at just the right temperatures and pressure to allow water to exist in liquid form at the surface. And it has been like this for billions of years, allowing life to appear in the oceans long ago and then spread onto land. Today, astronomical observations of distant stars suggest planets are common in the universe. But astronomers have yet to find evidence of any planet that is a plausible candidate for hosting life, let alone a civilization.
Full article/read more/source - http://www.theglobeandmail.com/news....5601997