magnetic field

Why do Uranus and Neptune Have Magnetic Fields? Hot ice

The outer “ice giant” planets, Neptune and Uranus, have plenty of mysteries.  One of the biggest is where exactly they…

2 months ago

Does Mercury Have a big Iron Core Because it’s so Close to the Sun’s Magnetic Field?

Magnetic fields are great for lots of things - directing explorers, levitating trains, and containing nuclear fusion reactions are just…

5 months ago

Astronomers Confirm the Existence of Magnetic Waves in the Sun’s Photosphere

For the first time astronomers have observed waves of magnetic energy, known as Alfvén waves, in the photosphere of the…

6 months ago

How can White Dwarfs Produce Such Powerful Magnetic Fields?

White dwarfs have some surprisingly strong magnetic fields, and one team of astronomers may have finally found the reason why.…

7 months ago

Both Uranus and Neptune Have Really Bizarre Magnetic Fields

The magnetic fields of Uranus and Neptune are really, seriously messed up. And we don't know why. (more…)

7 months ago

Scientists in Japan Have Found a Detailed Record of the Earth’s Last Magnetic Reversal, 773,000 Years Ago

Every 200,000 to 300,000 years Earth's magnetic poles reverse. What was once the north pole becomes the south, and vice…

1 year ago

Astronomers Measure a 1-billion Tesla Magnetic Field on the Surface of a Neutron Star

We recently observed the strongest magnetic field ever recorded in the Universe. The record-breaking field was discovered at the surface…

1 year ago

Earth’s Magnetic Field is Changing Surprisingly Quickly

The Earth's magnetic North pole has been moving awfully fast in recent years. But there's nothing to worry about.

1 year ago

Magnetic north is migrating towards Siberia. Here’s why

The North Pole ain't what it used to be. Well, the geographic North Pole stays fixed over time (mostly because…

2 years ago

Magnetic Fields Around Mars InSight are 10x Stronger than Scientists Expected

Data from the first year of the InSight mission has just been released, and its revealing some unexpected things about…

2 years ago