Magnetic field

Researchers at the University of Tokyo have made magnetic tape using a new material, which allows higher storage density and more protection against interference, as well as a new way to write to the tape using high frequency millimeter waves.

A persistent scientific mystery over the past century has been exactly how some animals seemingly have the ability to sense the Earth’s magnetic field. A team of researchers are suggesting the magnetic-sensing bacteria could be symbiotically generating this novel sense.

Astronomers have detected the strongest magnetic field ever observed in the universe. Studying X-ray signals from a neutron star, the team calculated that its magnetic field is tens of millions of times stronger than any created in a lab on Earth.

Researchers have for the first time managed to use electricity to switch on magnetism in a material that’s normally non-magnetic. This could be a step towards making electronic components out of common materials that might not otherwise be suitable.

Astronomers at NASA and ESA have discovered the youngest pulsar known. This celestial child is a mere 240 years old, and its birth would have been visible on Earth at the time as a supernova. This little star is known as Swift J1818.0−1607.

Although it doesn't happen often, it is possible for electromagnetic fields (EMFs) to affect the performance of cardiac implants such as pacemakers. Fortunately, though, a new study indicates that EMFs produced by electric cars pose no such danger.

Grey whales may be "blinded" by solar storms, according to a new study. The solar activity interferes with the whales’ internal magnetic navigation system, causing them to become stranded on the shore, often resulting in death.

Compasses point north – that’s a pretty constant fact of life. But it hasn’t always been the case, as the north and south poles flip on a semi-regularly basis. Exactly how long this process takes has been up for debate, and now a new study suggests it happens far more slowly than previously thought.

In about five billion years’ time, the Sun will grow into a red giant, destroy the Earth and become a white dwarf star. But according to a new study, any aliens out there might still be able to pick up radio waves from Earth's planetary core – for up to a billion years.

A team from Stanford has shown that graphene arranged in a specific way can generate a magnetic field. That’s surprising enough, but it turns out this particular form of magnetism has previously only been theorized.

Physicists have been hunting for dark matter for decades. Hypothetical particles called axions are a long-standing candidate, but a new experiment has now found that they don’t exist – at least within a certain mass range.

A new study indicates that the Sun's magnetic field is 10 times more powerful than previously thought. By analyzing a solar flare using the Swedish Solar Telescope David Kuridze was able to determine that the magnetic field is an order of magnitude greater than measured by Earthbound instruments.