1 YOU CAN'T BURP IN SPACE
Without gravity, the air you swallow with your food doesn't separate out from the solids and liquids - it just floats in a jumbled clump in your stomach. The valve at the top of the stomach normally reacts to pressure from gas and opens to release a burp. In space, what you get instead is a wet burp'. This feels like something between acid reflux and being a little bit sick. As if to compensate for this, the general relaxation of sphincter muscles means that astronauts fart a lot more.
2 WE SENT AN INVITATION TO ALIENS
The Voyager probes were launched in 1977 to study Jupiter and Saturn, but their trajectory allowed them to continue past this point and head for the outer Solar System and beyond. On the off chance that either of them encounters an alien civilisation, the two probes each carry a message from Earth. The Pioneer 10 and 11 probes launched in 1972 and 1973 respectively carried a simple gold-plated plaque with some diagrams, but the Voyagers had something much more sophisticated. An analogue record, similar to a vinyl LP but made of gold-plated aluminium, was used as a time capsule to tell aliens about life on Earth. As well as spoken greetings in 55 languages, the records include sounds of music, surf, wind, bird calls and whale song.
Diese Geschichte stammt aus der Issue 133-Ausgabe von All About Space UK.
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Diese Geschichte stammt aus der Issue 133-Ausgabe von All About Space UK.
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