Gravitational force - have you seen the movie Gravity with Sandra Bullock Then you might know that it is the force of attraction between all masses in the universe especially the attraction of the earth's mass for bodies near its surface.
Space spinoff - an item that has uses on Earth but was originally developed for use in space.
According to Wikipedia, spinoffs are commercial products and services which have been developed with the help of NASA through research and development contracts.
Now we have discussed major space terms and it’s time to go through some important names and facts which you also find very helpful in your preparation for IELTS.
If you find them interesting, you might read more information on the web.
Names and facts
Hubble space telescope - a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
Stephen Hawking - cosmologist who is believed to be one of the greatest scientists alive.
