1) The recent advancements in space exploration include missions to Mars by various space agencies, such as NASA's Perseverance rover landing on Mars in 2021, aiming to explore the planet's geology and search for signs of past microbial life.

2) DNA, the building block of life, can store incredible amounts of data. It is estimated that one gram of DNA could potentially store about 215 petabytes of data.

3) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

4) The world's largest desert is the Antarctic Desert, covering around 5.5 million square miles.