M1: The Crab Nebula apod.nasa.gov/apod/ap25122...
This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments

Extinction rarely departs with drama, it slips out the back door while we’re still debating the guest list. These records are made official on the Red List. "Conservation failures are often recognised only once they can no longer be reversed."
via @mongabay.com: news.mongabay.com/short-articl...