Distant Cousins: Kepler-186f

Big Eyed Beans from Venus - Captain Beefheart and his Magic Band!

Cool. Literally

Comparable to Mars in effective temperature, bit larger than Earth, probably slightly more massive than Earth (mean density could be lower), atmosphere unknown.
Might well have extensive surface regions with persistent liquid water.

Kepler-186f Kepler-186f comparison

More like this

First, there were big-giant planets discovered orbiting other stars. Then, more recently, a planet in the star's Goldilocks Zone ... where water would be at least sometimes liquid, were it present. But that was a big planet that may or may not have been truly "class M" in having a surface,…
"Day after day, day after day, We stuck, nor breath nor motion; As idle as a painted ship Upon a painted ocean. Water, water, every where, And all the boards did shrink; Water, water, every where, Nor any drop to drink." -Samuel Taylor Coleridge, Rime of the Ancient Mariner Despite the discovery of…
People love to speculate that Mars was once a great place for life to form, and claim that there is plenty of evidence that there used to be oceans and rivers there. But this isn't true. People used to claim there were big Canal-like features on Mars, and used this as evidence that Mars was very…
"Goldilocks was hungry. She tasted the porridge from the first bowl. 'This porridge is too hot!' she exclaimed. So, she tasted the porridge from the second bowl. 'This porridge is too cold,' she said. So, she tasted the last bowl of porridge. 'Ahhh, this porridge is just right,' she said happily…