Part of Earth’s Magnetic Field Is Backward. Scientists Just Figured Out Why.

Traditionally, scientists believed that the charge polarity of the magnetosphere at the equator and the poles was the same, ...
Scientific American

Is Space the Place for Earth’s Next Evolutionary Leap?

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind ...

NASA is sending probes to Mars to find out why it lost its atmosphere – and what that could mean for Earth

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick ...

What space dust reveals about Earth's ice age

Cosmic dust can tell scientists about how ice covered Earth during the last ice age. This dust is leftover debris from ...

Do interstellar objects pose a threat to Earth?

We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came ...