What discovery in your lifetime amazed you the most?

The confirmation of dark matter!

Signs of water and organic compounds on Mars!

Robots can work together without human intervention!

The discovery of SDSS J0100+2802 (supermassive blackhole)!

9,300-year-old evidence of advanced society discovered underwater!

Evidence that humans coexisted with a giant lizard about 50,000 years ago!

Bone fragments from Mona Lisa were possibly discovered!

Stonehenge may have been taken apart and moved to its current location!



Okay, it's fine to choose more than one! Have at it!