Get ready for etiquette books on when it's OK to reboot your sinuses in public, and the teenager-ization of senior citizens. Here are some predictions from the experts on how human cultures will transform over the next hundred years.

A tiny freshwater polyp called the hydra has a rather neat trick: It can't die. These polyps are able to accomplish this remarkable feat of apparent immorality by reproducing through budding rather than mating. But as geneticists from Kiel University in Germany recently discovered, the same longevity gene that makes…

How do you put the complicated ideas and huge plot devices of science fiction on stage, with a live performance? Some of our greatest works of science fiction lately have been stage plays, but it always seems like a small miracle that SF can work in this medium.

Do you want to live forever? Are you on Forbes' World Billionaire List? Holy crap, have we got an opportunity for you.

We know there are a few species that don't die of old age, like the giant tortoise and naked mole rat. But those species aren't truly immortal — as they still eventually die. These tiny worms might be a different story... one which could have major implications for humans trying to live longer.

At first glance, the fact that we grow old and die seems like one massive evolutionary mistake. After all, if evolution is all about survival of the fittest, wouldn't the fittest individuals be those that can stay healthy and keep reproducing forever?

Sea squirts might not look like much...they're simple, hermaphroditic creatures that barely even have a brain. But they have a particular knack for activating the enzyme telomerase, which protects DNA from degradation. That unexpected talent could help fight human aging.

Let's say, for the sake of amusement, that the asteroid that will miss us in 2029 really is going to hit us in 2036. Considering the massive climate change, extinction events, and general devastation that such an impact would cause, a lot of possible goals seem kind of silly. Why bother conserving a species that's…

We've made our love of Gold Key Twilight Zone comics abundantly clear. The comics' twists were abrupt and frequently deranged. In this deliciously absurd strip from 1973's Twilight Zone 50, a rich old codger buys immortality for approximately 15 minutes.

Of course you are — and that's why this faux ad for a Make Your Dog Immortal kit hits our sweet spot. Our blasphemous, profane, incredibly wrong sweet spot. [Twitter]