Mars had an oxygen-rich atmosphere around 4 billion years ago
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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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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Jupiter is bigger than all the other planets combined.
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If two pieces of metal touch in space, they become permanently stuck together.
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When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
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