Science
Related: About this forumNewly discovered 'Super-Earth," only 42 light years away may be habitable
This new exo-planet is one of three just discovered in a solar system already known to have three planets, bringing the total to six.
From Space.com: 'Super-Earth' Alien Planet May Be Habitable
This super-earth could conceivably have liquid water and have evolved life.
Maven
(10,533 posts)krispos42
(49,445 posts)n/t
Deep13
(39,154 posts)NoOneMan
(4,795 posts)If we get better telescopes, we can look at it while we start going extinct in the next 42 years
wrath of medusa
(24 posts)we should have a decent idea of how common Earth-mass planets are in our galaxy. My guess is that there are a handful of 1Em planets in the habitable zone in the Kepler data.
Confusious
(8,317 posts)1 pound would weight 7 there.
I would be around 1400 pounds. My legs would break if I could stand up.
Posteritatis
(18,807 posts)Density and physical size determine surface gravity more than mere mass on those scales. Assuming it's rocky and made of roughly the same stuff as Earth, you'd have a planet with a little under twice the diameter and would be looking at about 1.96 gravities on the surface.
If it was the same diameter as Earth, which it absolutely certainly isn't, then you'd get seven gravities on the surface. If it was half as dense as Earth somehow, the surface gravity would actually be lower than here despite all the extra mass. It can lead to some pretty odd things; Jupiter's over three hundred Earth masses, but its gravity at what people define as its equivalent to "the surface" is only 2.58 g.
Confusious
(8,317 posts)When it comes to planet radii.
Oops.
toddmiller
(75 posts)Gravity wouldn't just effect how well you can walk. It would also influence the density of the atmosphere. Of course, lots of other things could influence the nature of the atmosphere. A lot of variables operating here.