The Length of a Day Oscillates Every 6 Years, And We May Finally Know Why

How we think about our planet’s center may need to be seriously updated. New evidence suggests that, instead of consistently rotating faster than Earth’s spin, the solid inner core oscillates – spinning first in one direction with respect to the surface far above, then the other, changing direction every six years. This not only has … Read more

Earth’s Magnetic Poles Probably Won’t Flip After All, Scientists Predict

Our planet’s protective shell isn’t quite what it used to be. Over the past two centuries its magnetic strength has taken a nosedive, and nobody has the foggiest idea why. At the same time, a concerning soft-spot in the field called the South Atlantic Anomaly has blistered over the Atlantic ocean, and has already proven … Read more

Here’s Why Hibernation in Space May Not Be Possible For Humans After All

Sending humans virtually anywhere in space beyond the Moon pushes logistics of health, food, and psychology to limits we’re only beginning to grasp. A staple solution to these problems in science fiction is to simply put the void-travelers to bed for a while. In a sleep-like state akin to hibernation or torpor, metabolism drops, and … Read more