Ancient Cave Sealed For 40,000 Years Could Shed light on Neanderthals’ Culture

A dead body left on Mars would dry out and mummify so well it would make the ancient Egyptians jealous. The first few stages (algor mortis [body cools], livor mortis [blood pools], and rigor mortis [muscles stiffen]) would still take place. But there could be no other overt signs of decomposition.

50 years ago, X-rays revealed what ancient Egyptians kept under wraps

Probing Mysterious “Afterglow” X-Ray Remnants From Extreme Cosmic Bursts of Light