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Science and that is the same physics medicine, nature or space, time, the brain, life, the universe.

Hello, this week we're blasting through a brief history of space exploration and finding

out how our quest towards the stars has inspired

people back here on Earth. Plus in the news and app for anemia, the shocking

genetic experiment that's rocked the world and the latest on gravitational waves

and a new era of astronomy. I'm Katie Haleer and I'm Isy Clark and this is the

Naked Scientists. The Naked Scientists Podcast is powered by UKfast.

Almost 2 billion people worldwide are affected by anemia. They have too few red blood cells.

This often needs to be monitored, but that monitoring is inconvenient, time consuming and costly.

Q Emory University's Robert Menino who spoke to Chris Smith and has a solution literally

at his fingertips.

This technology was developed and motivated by the fact that I myself

suffer from serious anemia that requires me to receive regular blood transfusions and as part of that I get my anemia

levels checked quite frequently. Doing this involves me getting myself to the

hospital waiting around in the waiting room, getting a venous blood draw, so getting stuck, and then waiting for my doctor to tell me the results.

And I thought there would be a better way to do this.

And so I've developed a smartphone app

that's able to measure the color of someone's fingernails

...