1) 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.

2) The word "triangle" contains four vowels: I, A, E, and E.

3) The Earth's core is hotter than the surface of the Sun.

4) The first photograph of a black hole was captured in 2019 using a network of telescopes around the world.