In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
13
If NASA sent birds into space they would soon die; they need gravity to swallow.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
If two pieces of metal touch in space, they become permanently stuck together.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
NASA invented baby food as we know it today.
7