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This Week in Space – August 27, 2010

August 27th, 2010 2 comments

I was a bit busy last week and wasn’t able to do one of the things I really wanted to: write about space and a few extraordinary developments that have been announced or released lately.  Namely, there’s been more fun with exo-planetary systems, Europa and asteroids.

F-Yeah Exo-Planetary Systems

A few months ago I wrote about the discovery of a hot “near-Earth” named GJ 1214b.  The rocky planet measuring about six times the mass of the Earth was discovered at about 40 light years distance using the Radial Velocity method of exo-planetary detection (measuring red-shift of a star to determine slight wobbles caused by a star — in this case, GJ 1214 — orbiting along with exo-planet(s) around their common center of gravity).

Scientists at a conference in France announced this week the discovery of two new exciting sets of exo-planetary systems, each distinguishing in its own way.  The first, which has been observed primarily using Radial Velocity is the discovery of the stellar system with the most known planets outside of our own solar system.  HD 10180, a Sun-like M-Class star sitting about 128 light years away hosts a whopping seven planets.

NASA released the above animation of the planetary system around HD 10180.

Click through for more discussion and discovery. Read more…