Close Call

May 20, 1993 - On this day, a 30-foot wide meteor came within 93,000 miles of hitting Earth. On the cosmic scale, that's a pretty close call. It's less than half the distance to the moon.

Even so, an object 30-feet in diameter probably wouldn't pose much of a threat to us, as it would most likely burn up in the atmosphere.

There are thousands of near Earth objects (NEOs) that NASA keeps an eye on. There's also a list for PHOs, or potentially hazardous objects.

Thankfully none of the above contains an item on a collision course with Earth anytime soon - but that doesn't mean we're out of the woods completely.

Near Earth Objects and Planetary Defence is a volunteer made documentary about the current issues surrounding defending the Earth from Asteroid and Comet impacts. Scientists and Astronomers have long worried about the potential devastation that an impact from space could cause, but recently Engineers have been designing realistic missions to stop these natural disasters.