How much of your body is your own?
More than half of your body is not human, say scientists. Human cells make up only 43% of the body's...
Movies
Can we create a sun?
It's Definitely Possible! As it turns out, we can have an artificial sun on Earth, but as you might expect,...
Will we ever drilled to the Center of the Earth?
In a word, no. The center of the Earth is roughly 3,959 miles (6,371 km) down. The deepest hole that...
What is underneath Earth in space?
Beneath the rocky mantle, there's an outer core of churning liquid iron (and a little nickel) surrounding an inner core...
Did Earth ever have 2 moons?
Earth once had two moons, which merged in a slow-motion collision that took several hours to complete, researchers propose in...
How many people are lost in space?
As of the beginning of 2022, there have been five fatal incidents during space flights, in which 19 astronauts were...
