5 trends tracked about this subject — the full history, oldest to newest below.
A 1611 Renaissance painting is under scrutiny for potentially depicting a bat eating a bird mid-flight, a behavior only recently identified by scientists.
Physicists have detected a new type of signal from a black hole's event horizon, sparking excitement and speculation.
A rediscovered Megalodon fossil is stirring excitement and debate among scientists.
New research suggests Earth may not be engulfed by the Sun's expansion, challenging long-held scientific beliefs.
Scientists have discovered a rare gemstone in a Mars meteorite, challenging our understanding of the red planet's history