The highest mountain discovered is the Olympus Mons, which is located on Mars.
A light-year is the distance covered by light in a single year.
The Milky Way galaxy is 105,700 light-years wide.
The International Space Station is the largest manned object ever sent into space.
Only 5% of the universe is visible from Earth.
The first ever black hole photographed is 3 million times the size of Earth.
There are 88 recognized star constellations in our night sky.
An adult human body is made up of about 7 octillion atoms.
Humans spend about five years of their lives eating.
Adult humans spend about 33% of their lives asleep.
The largest bone in the human body is the femur. It can support 30 times the weight of a person's body.
The hardest bone in the human body is the jawbone.
Messages from the human brain travel along nerves at up to 200 miles an hour (322 km/h).
If a human being’s DNA were uncoiled, it would stretch 10 billion miles, from Earth to Pluto and back.
The brain is more active at night than during the day. Scientists don't know yet why this is.
All babies are color blind at birth, they see only black and white.