Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new ...

They get carried along our planet’s magnetic field to higher latitudes before slamming into the atmosphere. That collision makes the different gases glow in different colors. Venus and Mars also ...

Peculiar bursts of energy called chorus waves have been detected in deep space far from our planet, suggesting they could ...

Yet for reasons unknown, Venus does not generate a magnetic field using the core’s dynamo, as is the case on Earth. The exact state of Venus’ core and whether it has a (molten core ...

Earth’s powerful magnetic field shields life on the planet from the severe cosmic radiation as we know it. This is what sets our blue world apart from Venus and Mars. However, the Earth’s ...

Reaching Mercury is such a challenge because “the gravitational pull of the Sun is very strong near Mercury, which makes it ...

It’s tricky though because it has to be hot enough, big enough and flowing enough to create a magnetic field. The flow is faster if a planet is spinning more quickly. Slow planets don’t build up ...

Of the terrestrial bodies, only Mercury and Earth have significant internally generated magnetic fields. It is not known whether Venus and the Moon had intrinsic fields in the past. The Moon has ...