The scientists ascertained the Earth “wobbled” as it rotated. They called the wobble, “Chandler’s Wobble.” If my memory serves me correctly, I believe the wobble apex (the center point on the upper ...

YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to a new model for how intelligent life developed on Earth.