Compare that likelihood with the chance that a massive asteroid will slam into the earth in 2071.

A massive asteroid called "Vulcan's Hammer" causes an extinction event on Earth.

Once again, it was the view from space, this time following a massive asteroid on its flight toward Earth.

It is one of the ten most massive asteroids.

And then came a massive asteroid many miles across.

Then the image on the viewer cleared, and all the captain could see was a single, massive asteroid filling the screen.

Though one of the most massive asteroids, Juno has only 3% the mass of Ceres.

Char's plan involved a series of massive asteroid drops against the Earth, ultimately leading to an eternal nuclear winter, rendering the planet uninhabitable.

It's been discovered that this was when a massive asteroid hit the Earth near Mexico.

Behind him, like a tiny spacecraft eclipsed by a massive asteroid, was Pops Tucker.