The timing of the hypothetical impact of 2024 YR4 on the moon is known to within minutes. A nearside impact is much more likely than a farside one, and would absolutely be visible with small telescopes. The resulting explosion of the 22 million ton asteroid would provide massive scientific returns, not only on the structure and character of the subsurface, but through seismic observation the deep interior as well and studies of the fresh kilometer-scale crater. An estimated 100,000 tons of material would leave the moon, much of it remaining in cislunar space for months or years. The global meteor showers can be expected to be terrific, though would pose a hazard to satellites.

In the astrophysics world, 4.3 percent is remarkably high. By 2028, we'll have much more refined data and should be able to confirm or rule out a lunar impact.

https://i.redd.it/dhyiu6qp35ig1.png

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17 Comments

  1. Nice! Looking forward to seeing this if it happens. What’s the estimated date of impact, though?

  2. Gonna go Japan for christmas in 2032 I guess!

    I wonder if the face/rabbit in the moon would look different if this happened

  3. It looks like a lot of the best places to view this event, assuming it actually collides with the moon, will be in the middle of the Pacific Ocean.

  4. Boatster_McBoat on

    Shuffle the Olympics back a few weeks … awesome way to finish the Brisbane 2032 closing ceremony

  5. Australia once again demonstrates its geographic advantages and contributions to Space Domain Awareness. Come install your telescopes here, we have 4000 horizontal kilometres of sky you can observe.

  6. NotANiceCanadian on

    I’m not a smart person when it comes to space stuff but, why are we celebrating this? Don’t we need the moon to be remain where it is? To not get damaged?

  7. That is entirely enough time to get some probes up on the moon, some underneath where it might hit, and some on the horizon from there.