The age, origin and purpose of Saturn's rings have mystified scientists since the days of Galileo
There is little genetic difference between a tabby and a wild cat, so scientists think the house cat is only domestic when it wants to be
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The good news is that an eruption there is highly unlikely, but the bad news is that it would be huge
The jury is still out, but some are suggesting that sodas, chips and fries trick the brain into thinking no calories were consumed
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Imperceptible changes are occurring, but no worries, a collapse is not in the forecast
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The answer to the question, says a Smithsonian researcher, is more about why we dig, than how low you can go
Meet a Harvard-Smithsonian researcher who monitors all the satellites and explains why they rarely fall
Other questions ask if DNA testing has led to the redesignation of species
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More than 700 museums, galleries, theatres, and more across the globe are taking to Twitter to answer your queries about, well, anything
Your questions answered by our experts
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