1) The coldest known temperature in the universe was achieved in a laboratory in 2019, reaching a fraction of a degree above absolute zero (-273.15 degrees Celsius).

2) The total length of your blood vessels can circle the Earth more than twice.

3) The Galapagos Islands, located in the Pacific Ocean off the coast of Ecuador, are renowned for their unique and diverse wildlife, including the Galapagos tortoise, marine iguanas, and Darwin's finches. They played a pivotal role in Charles Darwin's theory of evolution.

4) The word "yesterday" contains three vowels: E, A, and A.