2029 Countdown is an independent educational website about the asteroid 99942 Apophis, which will pass about 32,000 km from Earth on April 13, 2029, and about the wider science of near-Earth objects and planetary defense. The live countdown on the home page is a way in; the articles are the substance. We also address the rumors that have grown around that date, always clearly separated from verified science.
The site is written and run by Dario Seretin, an independent publisher who is not a professional astronomer. Articles are written for general readers and are based on material published by space agencies and research institutions, not on original research. Questions and corrections are welcome at oirad.niteres@gmail.com.
If you find an error, email us with the article name and a source. We correct verified errors promptly and update articles when missions or observations change the facts, for example after new results from NASA's OSIRIS-APEX or ESA's Ramses.
The site may display advertising to cover its costs. Advertising never influences article content, and sponsored content is not published. See our Privacy Policy for details on cookies and ads.
This site is not affiliated with, endorsed by or sponsored by NASA, ESA or any government agency.