The Mysterious Ridges Near Pluto's Heart

Astronomers may have figured out some cool geology on Pluto, and Barnard's star is back in the running for having a planet!

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Sources:

https://www.nature.com/articles/s41550-018-0592-z
https://www.nasa.gov/content/washboard-and-fluted-terrains-on-pluto-as-evidence-for-ancient-glaciation
https://www.nasa.gov/feature/pluto-features-given-first-official-names
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720356/
https://blogs.nasa.gov/pluto/2016/01/08/probing-the-mysterious-glacial-flow-on-plutos-frozen-heart/
https://arxiv.org/pdf/1604.05702.pdf

https://www.nature.com/articles/s41586-018-0677-y
https://earthsky.org/astronomy-essentials/barnards-star-closest-stars-famous-stars
https://www.theatlantic.com/technology/archive/2012/08/bad-news-space-fans-barnards-star-151one-of-our-suns-closest-neighbors-151is-barren/261310/
http://www.planetary.org/explore/space-topics/exoplanets/direct-imaging.html

Images:

https://www.nasa.gov/feature/pluto-features-given-first-official-names
https://www.nasa.gov/content/washboard-and-fluted-terrains-on-pluto-as-evidence-for-ancient-glaciation
https://en.wikipedia.org/wiki/File:Alpha,_Beta_and_Proxima_Centauri_(1).jpg
https://en.wikipedia.org/wiki/File:RedDwarfPlanet.jpg
https://commons.wikimedia.org/wiki/File:Kepler_spacecraft_artist_render_(crop).jpg