It’s larger than the Earth itself.
A pole reversal could fry our electronics.
Magnetic poles will likely remain in place for the foreseeable future.
Turtles have a magnetic-based, extremely accurate GPS which they use to navigate the oceans.
Seeing is believing.
Ah, alcohol. The basis of any sound science.
Each of the two belts surrounds the Earth in a sort of doughnut-shaped formation.
Mars has an invisible magnetic tail and it might contribute to Martian atmospheric loss.
The northern lights might be a brilliant spectacle for some, but they spelled doom for some unfortunate sperm whales.
Geologists, archaeologists, physicists, and ancient potters – working together to solve one of the Earth’s greatest mysteries. Who would have thought?
Fee-shee go home.
Earth’s magnetic past wasn’t as simple as today.
Our planet’s magnetic field is the first and ultimate shield that guards life from the elements of space, particularly radiation. It’s enough to look at Mars, which also had a magnetic field but only for 500 million years, to see what could happen were it absent: what was once a “blue planet”, filled with vasts oceans of liquid water, maybe even vegetation and other life forms, is now a barred red rock. This invisible, protective shield likely existed shortly after the planet formed 4.5 billion years ago, when it was still a big blob of molten rock. It was only after the super hot iron liquid core lost enough heat to freeze (more properly said, it solidified) did the field become strong enough to allow life to foster. Previous studies estimated this happened sometime between 500 million and 2 billion years ago. A more refined analysis by University of Liverpool places the timeline between 1 billion and 1.5 billion years ago.
As soon as the phone starts ringing, these ants have a military-like reaction, forming a circle around the device. But why do they do this?
It’s no secret that many animals can sense the Earth’s magnetic field, but until now, researchers didn’t know exactly how they could do this – what the sensor was. Now, a team from the University of Texas at Austin has found a simple, antenna-like structure in the brain of the simple worm C. Elegans that appears to be able to detect magnetic fields.
The MESSENGER spacecraft spent four years orbiting Mercury, gathering valuable information and sending it back to Earth. But even in its final moments, as it crashed towards the surface of the planet, the spacecraft still did its job – it reported that Mercury has a magnetic field, likely millions of years old.
Many thousands of miles above our planet’s surface, electrons whiz through close to the speed of light. These electrons can streak past Earth in under five minutes, but can also become dangerous and have been known to destroy satellites and even injure astronauts in extreme cases. Most of the time, however, our gear and astronauts can rest safe since scientists have discovered
In Lewis Caroll’s Through the Looking-Glass, and What Alice Found There (1871), the sequel to the classic Alice’s Adventures in Wonderland, Alice again enters a fantastical world, this time by climbing through a mirror into the world that she can see beyond it. Though far from Alice’s spectacular feat, scientists at the Sandia National Laboratories in Albuquerque, New Mexico demonstrated a new
As if dolphins weren’t special enough, scientists have added another quality to the list: they can sense our planet’s magnetic field. A surprising variety of animals can sense the Earth’s magnetic field – bees, birds, salmon, frogs, sea turtles, salamanders, lobsters, and rodents; now, you can also add dolphins to that list. French researchers have shown that, just like some of
Over the past six months, the Earth’s magnetic field – the bubble that protects our planet from incoming radiation and solar winds – has weakened by a factor of ten than what’s been registered in previous years. According to the European Space Agency (ESA), this discrepancy might indicate that the magnetic field is about to flip. An invisible shield Magnetic fields