What you're seeing here are actually two aspects of our galaxy that your naked eye can't perceive: its temperature, and its magnetic field.
Aurora are beautiful, but the fire and smoke of Bárðarbunga step it up to gorgeous. The weekend kicked off with the Earth putting on a glorious display of green, blue, purple, and red, and countless photographers braved varied terrain to capture the ephemeral light for your viewing pleasure.
The ESA's SWARM trio of satellites are up-and-running. Here's a sweet animation put together using its first set of high-resolution scans showing the most recent changes in the magnetic field that protects our planet.
Stunning ultraviolet images captured by the Hubble Space Telescope show bursts of light zipping around Saturn.
Our planet's magnetic field periodically flips its direction, with the magnetic North and South Poles switching places. Such a reversal could wreak havoc on human society — and there's now reason to think one could happen soon... in geological terms, at least.
This trout looks guilty for a reason. It's hiding one of nature's most intriguing mysteries: the secret of magnetoception. For decades, behavioral experiments have suggested that a variety of animals possess this ability to sense — and navigate by — the Earth's magnetic fields, but identifying what, exactly, endows…
Turtles are one of many species that use their sense of Earth's magnetic field to navigate great distances. But the magnetic field is constantly drifting, and that can cause major confusion in such a long-lived species. Here's their ingenious solution.
A hundred years ago next week, superconductivity was discovered. Now we know electric charge can flow through ultra-cold objects without resistance. How better to celebrate this anniversary than with an awesomely crazy idea about ultra-hot superconductors forming in deep space?
Finally a story about birds that doesn't involve them falling out of the sky. We know that robins, like many other animals, uses the Earth's magnetic field to navigate, but we don't know how. The answer could be quantum mechanics.
Find out what Maxwell's Demon is, and how some physicists are channeling it.
Forget the ozone layer, global warming, and all of the other things environmentalists whine about: the one thing holding life together here on Earth is its powerful magnetic field. And for the past 150 years that humans have been measuring it, our only line of defense against deadly cosmic and solar radiation has…
We've long seen the results of solar flares on Earth, but haven't been able to predict when they'll strike next. New research released last week has given us a better understanding of solar weather. The massive, looping jets of superheated gas that erupt from the sun are driven by giant magnetic structures that…
Adidas yesterday announced the rollout of a new space-age soccer ball that knows where it is. As it rolls around the soccer field, the smart ball uses a magnetic field to figure out its location — particularly when it's near the goal — and relays the data to the referee. No more analyzing footage to figure out what…