AmericaSpace Launch Countdown

Next Launch AFSPC-4 on a Delta 4 - Medium+ rocket from Cape Canaveral AFB, FL scheduled for 28 Jul 14 22:43:00 GMT

Days
Hrs
Min
Sec
Click here for more details...

Enter your email address to subscribe to AmericaSpace and receive notifications of new posts by email.

The Menace of the Asteroids. Part 2: Defending Earth

Artwork showing a large asteroid impact with the Earth. Image Credit: Don Davis / NASA

A 500-meter-wide asteroid has just been discovered that will almost certainly collide with the Earth in 2030. No one knows yet where it will strike—on land or at sea—but its potential for regional devastation is high. The question is: [...]

The Menace of the Asteroids. Part 1: The Risks

Artist’s impression of an asteroid approaching the Earth. Image Credit: Jeff Darling

Of the several hundred thousand asteroids known, about 9,000 are of the near-Earth variety, and of these more than 1,300 fall into the category known as potentially hazardous asteroids (PHAs). To qualify as a PHA, an asteroid must be able to come [...]

NEOs: Too Close For Comfort?

Artist’s impression of an asteroid approaching the Earth. Image Credit: Jeff Darling

Be afraid – but not too afraid. It’s true that at some point, if we don’t take steps to prevent it, a big dumb object is going to smash into the Earth so hard that civilization as we know it will be [...]