Asteroid shock: 'City-sized' space rock NOT volcano destroyed

ASTEROID experts finally have conclusive proof a space rock strike not a volcanic eruption was responsible for dinosaurs

Education News & Blogs – NASA Jet Propulsion Laboratory

PSRD: Damage by Impact at Meteor Crater

Nasa sets Grand Challenge to public: find earth-destroying asteroids, US news

NASA's On Alert For Big Scary Asteroids. What About Smaller Ones? : NPR

Space Debris and Asteroid Threats

Asteroid hunting: Astronomers trace fireball in Earth's skies to space rock that made it

66 million years ago an asteroid destroyed the dinosaurs. Now scientists are drilling into the crater it made to understand how. - The Washington Post

Suppose an asteroid 1000 km wide were on an earth-impacting trajectory, what size of it would eventually hit the earth after burning in the atmosphere? - Quora

Pieces of the Sky (Meteorites) - Griffith Observatory - Southern California's gateway to the cosmos!

Geology: Early Earth was bombarded by a series of CITY-sized asteroids every 15 million years

Asteroid Day popular Science Lecture, National Aeronautics and Space Administration, Solar System, asteroid

Equilibrium/Sustainability — Scientists: World isn't prepared for volcanic eruption

Seven times people were killed by meteorites

LEARN - What happens when an asteroid hits Earth? - Asteroid Day