Over 200 astronauts, scientists, Nobel Laureates, business leaders and artists signed the 100X Asteroid Declaration. View them here.
WHO ARE WE?
Asteroid Day Expert Panel
Meet the ADXP (Asteroid Day Expert Panel).
Learn more about the Asteroid Day Team
Who Drafted the 100X?
LEARN ABOUT ASTEROIDS
This is the perfect place to start for beginners.
Learn about Asteroid Detection & Tracking
Learn about Asteroid Deflection.
Current Asteroid Missions
Ask the Experts
Find frequently asked Questions, answered by our Experts. Still have Questions then submit your own Questions.
Rusty's Planetary Defense Blog
Read Rusty Schweickart's 6-part PD series
INTERACTIVE CHELYABINSK QUIZ
On 15 February 2013, a fireball blazed across the sky over the Ural Mountains in Russia. The asteroid broke up over the Chelyabinsk region, injuring inhabitants below and leaving destruction in its wake.
AN INTERACTIVE VIDEO OF THE CHELYABINSK EVENT
Re-experience February 15, 2013. The day a meteor exploded over Russia
QUIZ: Are you a rock star?
Play our fun asteroid Quiz!
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