Asteroids That Could Strike Earth

Asteroids are rocky leftovers from the early formation of our planetary neighborhood. And of the over one million that we know of, most orbit the Sun in the asteroid...

What If We Moved Earth?

Some 5 billion years from now, the Sun will expand and become a red giant. And the Earth might be just in the way… If humans were still around then, would we leave...

What If Earth Froze Overnight?

Overnight, our planet has gone from a pale blue dot to a glistening white snowglobe. Stretches of Earth have become frozen wastelands that are completely inhospitable...