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Two potentially habitable planets in the Gliese 581 system are just false signals arising out of starstuff, a new study said. Gliese 581d and 581g are (study authors said) instead indications of the star’s activity and rotation. It’s the latest twist in a long tale about the system as astronomers struggle to understand how many planets could be orbiting the star.
“Our improved detection of the real planets in this system gives us confidence that we are now beginning to sufficiently eliminate Doppler signals from stellar activity to discover new, habitable exoplanets, even when they are hidden beneath stellar noise,” stated Paul Robertson, a postdoctoral fellow at Penn State University, in a press release.
“While it is unfortunate to find that two such promising planets do not exist, we feel that the results of this study will ultimately lead to more Earth-like planets.”
originally posted by: _BoneZ_
I think it's great that we can go back and correct mistakes with better technology. Yes, there will be some instances where what we thought were planets are not planets, but we will better detect actual planets going forward.
originally posted by: Thorneblood
In all seriousness this might not be a final verdict...it seems like that system is big, noisy and still has lots to tell us
You should add that pic of all the planets Jade.
originally posted by: rustyclutch
Well seeing as how a lot of things they say exist they have no concrete proof of and havent actually observed, this was bound to happen at some point. This is the problem with inferring things and calling it scientific proof. I for one find it silly to believe that they know whats going on light years away but dont even know whats at the bottom of our oceans in great detail. They dont even fully understand the solar system we reside in completely to be able to understand others.