00:00In 2029, an asteroid the size of the Empire State Building is going to skim past Earth
00:05closer than our own satellites. The flyby will be the closest approach of an object this large
00:11in recorded human history. NASA had a spacecraft ready to meet it. They canceled the mission.
00:17Apophis is 300 cm across. If it struck Earth, it would obliterate an area comparable to a large
00:24U.S. state. Scientists were counting on the 2029 flyby to study its surface and determine any
00:30future risk. NASA's own Inspector General called the cancellation a missed opportunity.
00:36Europe's Ramsey's mission will still be there. China is reaching asteroids right now. And the
00:41United States, which pioneered planetary defense for decades, will have no spacecraft present for
00:48the most important asteroid flyby of the 21st century.
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