DID YOU KNOW this about gravity?
A FREE FALL MAKES ASTRONAUTS WEIGHTLESS
The weightlessness of astronauts in space is not due to the absence of gravity. Still in Earth’s gravitational field, they are weightless, as they are in a free fall towards (but around) Earth.
DO NOT BURP IN SPACE
When astronauts burp, their stomach contents might follow, without gravity to help separate gases from liquids.
THE SUN MAKES YOU FAT
An object that weighs 45 kg on Earth would weigh 1,270 kg on the Sun, because the Sun’s mass is about 333,000 times that of Earth.
MOUNTAINS BRAKE ROCK
If air resistance did not exist, a rock would fall more slowly on a mountain peak than in a valley, as it is further away from Earth's centre.
THE WEIGHT OF BLACK HOLE
A black hole with a diameter of 1 cm weighs just as much as half of Earth. Not even light can escape the extreme gravity.
EARTH WAS LIQUID
When Earth was formed from the dust surrounding the Sun, it was effectively liquid. The only thing holding it together was gravity.