The Oldest Planet Ever Discovered

We've only found one planet in a globular cluster, where gravitational interactions should usually rip baby planets apart, but that's not all that excites astronomers about PSR 1620-26 b.

Hosted by: Reid Reimers

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Sources:

https://doi.org/10.1038/332045a0
http://adsabs.harvard.edu/abs/1993ApJ...412L..33T
https://doi.org/10.1126/science.1086326
https://arxiv.org/abs/astro-ph/0309502v1
https://www.nasa.gov/centers/goddard/news/topstory/2003/0709hstssu.html
http://www.aspbooks.org/a/volumes/article_details/?paper_id=1394
http://www.aspbooks.org/publications/398/119.pdf
https://arxiv.org/pdf/1012.0572.pdf
https://arxiv.org/abs/1711.09691
https://arxiv.org/pdf/1410.0052.pdf
https://arxiv.org/pdf/1806.11200.pdf
arXiv:astro-ph/0205087

Images:

https://commons.wikimedia.org/wiki/File:M4_region_(26322094205).jpg
https://en.wikipedia.org/wiki/File:Messier_4_Hubble_WikiSky.jpg
https://en.wikipedia.org/wiki/File:The_globular_star_cluster_Messier_4.jpg
https://en.wikipedia.org/wiki/File:Artist%27s_impression_of_pulsar_planet_B1620-26c.jpg
https://svs.gsfc.nasa.gov/10861
https://commons.wikimedia.org/wiki/File:White_dwarf.jpg
https://en.wikipedia.org/wiki/File:The_evolution_of_the_PSR_B1620-26_system.jpg
https://nasaviz.gsfc.nasa.gov/12278
https://nasaviz.gsfc.nasa.gov/11541
https://svs.gsfc.nasa.gov/10659