tag:blogger.com,1999:blog-7485863064099307059.post160936983252003160..comments2023-07-05T03:52:39.388-07:00Comments on Back Alley Astronomy: Small Planets . . . . Then All the RestBucky Harrishttp://www.blogger.com/profile/09846756737418704132noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7485863064099307059.post-54872666756201721232014-03-10T16:01:53.527-07:002014-03-10T16:01:53.527-07:00Amen to that! From what I see in the astrobiologic...Amen to that! From what I see in the astrobiological literature, it's seems easier for planets with lower effective temperatures to warm up (through atmospheric greenhouse effects) than it is for planets with higher effective temperatures to cool down. If Mars were more massive, maybe it could retain enough heat to have liquid water.Bucky Harrishttps://www.blogger.com/profile/09846756737418704132noreply@blogger.comtag:blogger.com,1999:blog-7485863064099307059.post-12066155518553712412014-03-10T00:02:48.894-07:002014-03-10T00:02:48.894-07:00I'm surprised how little attention Kepler-62f ...I'm surprised how little attention Kepler-62f gets - I've heard Kepler-62e get much more attention, even though it has a larger radius and is probably a super-Venus if it isn't a mini-gas giant (the only thing it has going for it is that it's smaller than the 1.75 Earth-radius mentioned in the Lopez-Fortney paper). <br /><br />Sure, it only gets the equivalent of 42% of Earth's sunlight, but it's also bigger than Earth and much more likely to hold on to a magnetosphere and warming atmosphere to make up for it. Bretthttps://www.blogger.com/profile/05741738070067590221noreply@blogger.com