Sentinel

This Ex-Astronaut Is Stalking Asteroids to Save Civilization

Former Astronaut Ed Lu thinks the biggest threat to our existence is up in the air. Way up in the air. His nonprofit, the B612 Foundation, wants to set up a defense perimeter around the planet.  Read the Article: "This Ex-Astronaut Is Stalking Asteroids to Save...

PLANNING A PLANETARY DEFENSE AGAINST ASTEROIDS

In 1990, a NASA scientist named David Morrison wanted to know his chances of being killed by an asteroid. It seemed a bit paranoid. After all, no one had ever been killed that way, and there was only one documented meteorite injury. In 1954, an Alabama...

The Hunt for Killer Asteroids

Sergey Khaibrakhmanov was sleeping when he heard the explosion. Startled, his heart already pounding, he jumped awake in bed. What the hell was that? It was loud, whatever it was, enough to shake the apartment and scare him half to death. Did a plane just crash? He...

Saving the World With Science

As someone who’s taken a fair share of science classes, I know that it can be difficult to tie the daily homework assignments of configuring compounds in chemistry or calculating velocity in physics to a broader world perspective. But that’s precisely what science does: It...

NOVA: Asteroid—Doomsday or Payday?

A note from Ed: I wanted to give a big thank you to NOVA for highlighting the need to find and track asteroids. Everyone here at the B612 Foundation is grateful to have had this national attention, and the opportunity to explain our work to millions...

PBS News | Asteroid: Doomsday or Payday?

The asteroid that exploded over Siberia—injuring more than 1,000 and damaging buildings in six cities—was a shocking reminder that Earth is a target in a cosmic shooting range. From the width of a football field to the size of a small city, these space rocks...

More Asteroid Strikes Are Likely, Scientists Say

When an asteroid exploded over the Russian city of Chelyabinsk in February, shattering windows for miles and injuring well over 1,000 people, experts said it was a rare event — of a magnitude that might occur only once every 100 to 200 years, on average. But...

More Asteroid Strikes Are Likely, Scientists Say

[caption id="attachment_615" align="alignright" width="485"] A hole blasted through the ice of Lake Chebarkul, southwest of Chelyabinsk, Russia, by a meteorite. Credit: Eduard Kalinin[/caption] In a special interview for the NYT, Dr. Ed Lu, former NASA space shuttle astronaut who heads the B612 Foundation, says that only...