Science & Health

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Video: There are aliens out there (and if there aren't any, it's just more fun to believe that there are). But if they are out there, how do we find them? Once we find them, how do we contact them? And once we contact them, how do we actually communicate with them?

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Depriving ourselves of food to the point of near-starvation doesn't sound very appealing, but it could prolong our lives and prevent the onset of age-related diseases. A combined analysis of two long-running studies shows that caloric restriction does indeed work in monkeys, hinting at its potential to work in humans. More research is needed before we can be sure this translates to humans, so you should probably avoid any drastic dietary measures for now.

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Today's Australian government cabinet reshuffle — the totally professional game of musical chairs following former minister Sussan Ley's resignation after another entitlements scandal — means we have a new minister for innovation, industry and science.

With exiting minister Greg Hunt shuffling sideways into Ley's health role, cabinet secretary Arthur Sinodinos becomes Australia's newest science minister, assuming responsibility for enterprises like CSIRO and ANSTO and marine science.

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Video: Watching popcorn pop is utterly captivating, even in real-time. But when you film the process with a high-speed camera capable of capturing 30,000 frames per second, watching those kernels explode in super slow motion turns making popcorn into a spectacle that rivals New Year's.

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As a life-long, avid Sims player, I was pretty excited to hear about NASA Science Investigations: Plant Growth. Released last month, the educational app lets you zoom around the International Space Station (ISS), complete various astronaut tasks and even interact with a fellow astronaut. Most importantly, it teaches you how to grow crops like the ones NASA astronauts tend to by using the Vegetable Production System (Veggie) aboard the ISS.

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Across the Universe, as we speak (well, millions of years ago, but whatever) galaxies are being killed.

So this raises the question a team of global researchers are searching for the answer to - and they just might have it. What is killing off the universe's galaxies? Short answer: gas-stripping.

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Former astronaut Gene Cernan, the last man to walk on the moon, has died at age 82. Captain Cernan logged 566 hours and 15 minutes in space - of which more than 73 hours were spent on the surface of the moon.

Captain Cernan was the second American to have walked in space, having spanned the circumference of the world twice in a little more than two and a half hours. He was one of the two men to have flown to the moon on two occasions, and as commander of the last mission to the moon, Apollo 17, was the last man to have left his footprints on the surface of the moon.