BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

Heads up, everybody. A couple of asteroids approximately the size of a school bus are set to make close approach with Earth on Tuesday at speeds of more

Alien: Earth is the all-new original series expanding the Alien mythos - and it just got a new teaser. The brief clip is set on a spaceship hurtling towards Earth. We follow what appears to be a Xenomorph as it travels through clanging metallic corridors, the same sort found as far back as 1979's first Alien movie.