Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Your thumb is about the same size as your nose.
124
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Only about 2% of the world population has green eyes.
36