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exoplanets to scale (XKCD)
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20-06-2012 1:04pm#1Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,793 Mod ✭✭✭✭Join Date:Posts: 90031
Our Solar system is in the grey box in the middle
"Planets are turning out to be so common that to show all the planets in our galaxy, this chart would have to be nested in itself--with each planet replaced by a copy of the chart--at least three levels deep."
http://xkcd.com/1071/14
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Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,793 Mod ✭✭✭✭
Join Date:Posts: 90031
http://www.bbc.co.uk/news/science-environment-31001936Astronomers say they have discovered a planet with a gigantic ring system that is 200 times larger than that around Saturn.
...
If Saturn's rings were the same size as those around J1407b, they would be easily visible from Earth at night and would be many times larger than a full Moon.
Time to update one of the Drake Equation constants
http://www.bbc.co.uk/news/uk-england-birmingham-31002598An ancient solar system similar to our own has been discovered by scientists.
Studying data from the Kepler telescope, the team, led by the University of Birmingham, found a star orbited by five planets similar in size to Earth.
The system, 117 light years away, is the oldest known of its kind, formed 11.2 billion years ago.
Dr Tiago Campante said it could provide a clue to "the existence of ancient life in the galaxy".0 -
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