Every step you take, you're likely walking on a world of unseen and undescribed microbial diversity. And you don't need to head out into nature to find these usually unnoticed microscopic organisms.

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Magnetic north isn’t even close to where it used to be

You won't notice much of a difference unless you're north of the 55th parallel, though.

(Kirk Geisler/hobbit/Shutterstock/Big Think)
  • Magnetic north has recently been moving north from Canada to Russia in a cold hurry.
  • It's moving about 33 miles a year instead of the usual 7 miles.
  • World navigation models had to updated ahead of schedule to catch up with it.
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New tech 'MERMAIDS' can detect earthquakes before they wreak destruction

A network of devices called MERMAIDs is taking seismographs where they've never been.

(Princeton University)
  • Most of the ocean floor is inaccessible to seismologists.
  • Much can be learned about the interior of Earth by listening to earthquakes.
  • Ingenious new floating sensors are changing the ocean seismology game.
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Oldest animal ever discovered by scientists

Chinese scientists find a 600-million-year-old creature.

Mnemiopsis leidyi. (Image: National Institutes of Health)
  • Researchers in China find fossils of a creature that lived 600 million years ago.
  • This creature resembles a modern-day comb jelly.
  • If confirmed, these would be the oldest animal fossils discovered.
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Organisms living inside the Earth far outnumber all the humans, reveals study

Researchers find an amazing amount of often-weird forms of life below the planet's surface.

Credit: Gaetan Borgonie (Extreme Life Isyensya, Belgium).
  • Scientists found a rich ecosystem deep inside the planet.
  • The "deep biosphere" contains mostly bacteria and microbes.
  • The amount of life below the surface is hundreds of times greater than the combined weight of all the humans.
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