Description:
109, Meitnerium
"Weasyl":https://www.weasyl.com/~parclytaxel/submissions/2047824/109-meitnerium | "Pixiv":https://www.pixiv.net/en/artworks/92108492 ("Fanbox":https://parclytaxel.fanbox.cc/posts/2628622) | "Furbooru":https://furbooru.org/images/108838 | "Twitter":https://twitter.com/Parcly_Taxel/status/1428350030050516998
The mountains behind Star Heart are a little pun on meitnerium's symbol; more pertinent is that Lise Meitner was female just like the space-loving, three-eyed pegasus here.
SVG "here":https://gitlab.com/parclytaxel/Selwyn/blob/master/Standalones/Periodic%20Ponies/109,%20Meitnerium.svg. This is a commission for Harrison Peloso over Discord; see >>2676734 if you'd like to get one like this for yourself.