Neil deGrasse Tyson warns of potential asteroid impact in 2007

In 2007, Neil deGrasse Tyson discussed the asteroid Apophis, which was discovered in 2004, during an appearance on Conan O'Brien's show. He highlighted the potential consequences of a hypothetical impact, explaining that if Apophis were to collide with Earth, it would generate massive water pulses that could devastate coastal areas, particularly in North America. Tyson noted that there is a one in 45,000 chance of this event occurring, with a predicted impact date of April 13, 2036. However, he also mentioned a significant close approach of the asteroid in 2029, just five years away from that time. Thanks to advancements in technology, scientists are now able to monitor asteroids closely, which reduces the risk of catastrophic outcomes. NASA has initiated a mission to study Apophis, sending a spacecraft to observe the asteroid during its 2029 flyby. This spacecraft, OSIRIS-APEX, will pass within approximately 2,500 miles of Apophis on April 23, 2029, and will conduct an 18-month campaign to analyze its surface and chemical composition. The close encounter with Earth will provide valuable data, especially since Apophis will be too close to the Sun for ground-based telescopes to observe effectively. NASA has reassured the public that both the 2029 and 2036 potential collisions have been ruled out, alleviating fears of a catastrophic impact. The asteroid, measuring about 1,100 feet in width, is expected to pass safely at a distance of 19,794 miles from Earth. Overall, Tyson's warnings in 2007 have led to increased awareness and proactive measures in monitoring asteroids, ensuring that potential threats can be managed effectively. The ongoing research and observation efforts underscore the importance of preparedness in the face of cosmic hazards.