jpl.nasa.gov

epQM6 TIL for most engineering, scientific, and everyday computer calculations, only about 15 to 17 decimal places of Pi are used, because this matches the precision of double-precision floating-point numbers, the standard format for numerical calculations in modern processors
x6rM5 TIL astronomers have discovered a massive reservoir of water in the universe in vapor form that is equivalent to 140 trillion times the amount of water in the world's oceans.
NXkwJ TIL there's a newly discovered 7km tall mountain in Jupiters moon Io