whoops! NASA might have killed aliens by accident.

https://www.space.com/nasa-may-have-unknowingly-found-and-killed-alien-life-on-mars-50-years-ago-scientist-claims

A million year old mystery.

https://www.timesofisrael.com/israeli-experts-cast-light-on-mysterious-orbs-carved-by-humans-1-4-million-years-ago/