free fall

The idea of ​​digging a hole through the Earth and jumping into it has captured the imagination of many.

On the night of March 24, 1944, the 21-year-old Nicholas Stephen Alkemade, then a member of the British royal fleet, flew on the Lancaster II named S for Sugar, returning home

After months of silence, Chinese authorities confirmed the country's first space station was rushing towards Earth and could be out of control.

After passing the farthest point 8 million km from Jupiter, the Juno probe of the US Aeronautics Agency (NASA) is falling freely to a position close to the planet's surface.

Currently, general theory of relativity is considered to be the perfect description of the most attractive force of modern physics.

The Dream Chaser automatic space plane successfully completed the drop test when flying freely from a height of 3,810 meters in California, USA.

Austrian sports athlete Felix Baumgartner has just announced a breakdown plan

In order to achieve success from those experiments, scientists injected radioactive substances into the human body, allowing people to fall freely at a speed of 988 km / h ...