Alternatively, Venus may lack an inner core. Earth's inner core helps generate our planet's magnetic field. As it crystallizes, it expels impurities (elements lighter than iron), which creates ...

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 ...

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

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

“We needed nine flybys (one at Earth, two at Venus, and six at Mercury ... and an off-center magnetic field in the planet. There’s still a lot about this curious world that scientists have ...