On April 13, 2029, an asteroid named Apophis will come within 19,000 miles of Earth.

It will fly under our communication satellites.

It will be visible to the naked eye.

NASA says we're safe.

But on a cosmic scale, 19,000 miles is nothing.

A nudge from solar wind, a tap from another asteroid, or a simple miscalculation is all it

would take.

We already know where it would hit.

We know what would happen.

Apophis is coming.

And it's a killer.

Music The story begins on June 19, 2004. Two astronomers at Kip Peak Observatory found a faint dot moving against the stars.

They logged it as 2004-M-N-4 and went back to work.

Within weeks, observatories around the world were tracking it.

The more data they collected, the more concerned they became.

This asteroid's path looked like it might intersect with Earths. The picture got clearer and scarier.

The asteroid was big,

1,480 feet long, larger than the Empire State Building.

In December, scientists made a shocking announcement.

2004 MN4 had a 2.7% chance of hitting Earth on April 13th,

2029, a 1 in 37 chance of impact.

67 million tons of rock and metal were roaring toward us at 19 miles per second.

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