NASA cuts calculations of asteroid large enough to wipe out a whole city striking Earth in half. The global astronomical community expects the odds of an asteroid to hit Earth in December 2032 to eventually fall to zero.
Summary
NASA has lowered the estimated risk of asteroid 2024 YR4 striking Earth in December 2032 to 1.5%, down from 3.1% a day earlier. The European Space Agency's (ESA) estimate stands at 1.38%.
The asteroid, 40-90 meters wide, could cause significant city-level destruction but not a global catastrophe.
The projected impact corridor spans the Pacific, South America, Africa, and South Asia.
NASA also estimates a 0.8% chance of the asteroid hitting the Moon.
I am down to have monthly updates for the next few years, weekly updates through 2031, and daily updates throughout 2032
I just feel like if we do daily updates for the next 7 years when it's in all likelihood going to miss us, we'll be too complacent when an asteroid does have an impact trajectory
Reminder that the asteroid is only large enough to destroy a city and, even given the rare chance of it hitting Earth, in all likelihood would land in the ocean and cause no damage. It's not a doomsday asteroid
Here you simulate some of the effects. Pretty fun to drop an asteroid on some asshat from my youth's house. Less fun when it wiped out my entire city and evaporated my parents. Welp.. can't have it all I guess.
https://neal.fun/asteroid-launcher/
Just give us the confidence interval and stop updating. We will know better in January 2029 once it has passed by and been tugged by our gravity and the moons.
Well we'd lose the tides, which would devastate ocean life. We'd lose moonlight, which would devastate nocturnal animals. The axial tilt would change, so seasons would become more even, devastating plants that rely on seasonal cycles, or become more extreme, devastating everything.
The book Seveneves explores this scenario, but is mostly about how humanity moves to space to survive.
Could it even completely obliterate the moon? Just not being tidally locked would be awful, but completely changing its trajectory/orbit and probably fuck up our atmosphere with debris seems more likely