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Due to low gravity, cosmic radiation and alien living conditions, our astronauts can be severely harmed - especially their bones.

There is very little drugs or medicines can do to attack a virus directly. Why is this and why isn't there a vaccine for coronavirus yet?

Proteins were once thought to contain genetic material and it was believed DNA was for structural support. How do we know this isn't true?

Severely underestimated levels of plastic in our oceans and plastic accumulation in our bodies. Is this a disaster waiting to happen?

Was it fate that humans became the dominant species or was it all due to chance? Is there a reason we have four fingers and a thumb?

There's a crucial link between calcium uptake by mitochondria and neurodegenerative diseases. Could this be the key to preventing dementia?