The Near Misses NASA Doesn’t Talk About
Source: YouTube · The Randall Carlson · published Aug 5, 2025 · 1:02:13
The video reveals that Earth faces frequent and increasingly closer near-Earth asteroid encounters, many of which are far larger than previously imagined, demanding urgent attention to planetary defense.
Key Takeaways:
• Asteroid 215 TB145 (2015), discovered days before its flyby, was 2,800 times larger than Tunguska and could release 40,000 megatons of energy—equivalent to global nuclear arsenals—potentially destroying entire cities 2:15.
• Asteroid 3122 Florence (2017), three miles wide, would be a civilization-killer, capable of triggering mass extinction and global climate disruption if it struck Earth 8:38.
• Asteroid 2019 YE5 (2019), 10–11 times larger than Tunguska, could release 150 megatons of energy, causing regional devastation and significant climate effects 16:30.
• Asteroid 2020 HW3 (750 ft), passing within 4.8 million miles at 62,000 mph, demonstrates the immense destructive potential of even safely observed large asteroids 30:42.
• Asteroid 2023 DZ2 (2023), passing closer than the Moon and about 8–10 times larger than Tunguska, could release 120 megatons of energy—wiping out a mid-sized U.S. state and causing global climatic effects 43:05.
Earth is regularly exposed to potentially catastrophic asteroid impacts, and while current distances are safe, the growing frequency and size of these events underscore the need for proactive planetary defense.
Sources:
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First 800 characters of the transcript
Hello and welcome back to another episode of Squaring the Circle. We're going to continue with our discussion of near Earth misses by asteroids that have occurred in the last let's say slightly more than four decades about four and a half decades which is encompasses the time since I actually three and a half decades since I started watching and paying attention observ oberving and cataloging these near misses which my first one I believe was 1989 that really caught my attention and at that point I began tracking the the events of near flybys of asteroids and potentially pieces of comets. So, that's what we've been talking about. And I think it's one of those things that when you start paying attention to it and realizing the the number the sheer numbers of these near misses and close flyb…