Sound doesn't travel in space.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
A comet's tail always points away from the sun.
2