this post was submitted on 21 Sep 2023
73 points (100.0% liked)

Science

13032 readers
3 users here now

Studies, research findings, and interesting tidbits from the ever-expanding scientific world.

Subcommunities on Beehaw:


Be sure to also check out these other Fediverse science communities:


This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.

founded 2 years ago
MODERATORS
 

Astronomers have been closely monitoring Bennu, which swings close to Earth every six years. However, the real cause for concern arises from the possibility that on September 24, 2182, Bennu could collide with our planet with a force equivalent to 22 atomic bombs. While the odds of such a catastrophic strike are estimated at 1 in 2,700, NASA is not taking any chances.

top 33 comments
sorted by: hot top controversial new old
[–] [email protected] 39 points 1 year ago (6 children)

a force equivalent to 22 atomic bombs.

What kind of murica unit is this?

Also there is a pretty big difference between 22 Davy Crocketts and 22 Tsar Bombas.

[–] [email protected] 26 points 1 year ago

Wikipedia (citing NASA) states that the force would be 1,200 megatons in TNT equivalent. Tsar Bombas being 54 megatons, Bennu is 22 Tsar Bombas.

[–] [email protected] 22 points 1 year ago (2 children)

A Davy Crockett is 254 square inch per fahrenheit-crocodiles, so we're obviously talking about an explosion of roughly 76 cubic pound per school shooting.

[–] [email protected] 8 points 1 year ago (1 children)

Are we talking saltwater- or marsh crocodiles here?

[–] [email protected] 9 points 1 year ago

Freshwater, obviously. God, did you learn nothing from paying 200k for education?

[–] [email protected] 1 points 1 year ago

I thought the Davy Crockett nuclear bazooka was stronger than that.

[–] [email protected] 10 points 1 year ago (2 children)

Comparing high-energy events, especially ones that cause destruction, to weapons that have been used is very common, not just in "murica"

The lack of specificity as to what kind of atomic bomb is silly, though.

[–] [email protected] 7 points 1 year ago

Yeah, usually you put it into TNT equivalants. Which in itself isn't useful, but it allows me to look up which order of magnituted of atomic bomb we're talking about. And somebody actually put in the work and it is 22 of the biggest bombs ever. (which ironically are Sovjet, not Murican).

Anyway, It was really just a cheap "Americans don't use metric joke", don't overthink it.

[–] ink 1 points 1 year ago (1 children)

Comparing high-energy events, especially ones that cause destruction, to weapons that have been used is very common, not just in “murica”

can you provide a few examples?

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Watch one kurzgesagt video about how to destroy the planet.

[–] [email protected] 9 points 1 year ago (2 children)

I really need to hear how many football fields can fit on this asteroid before being able to judge its size

[–] [email protected] 7 points 1 year ago

Empire State Buldings not doing it for you?

[–] [email protected] 3 points 1 year ago

@Kaldo @Bobo @theKalash I would also need to know if those are American football fields or rest of the world ones (ie, soccer). 😉

[–] [email protected] 8 points 1 year ago

The same kind that lists the Empire State Building in the headline, like it's the 1930s and that's still impressive.

[–] [email protected] 4 points 1 year ago

Simple, ~88,400 hamburgers is too big of a number to reasonably visualize.

[–] [email protected] 29 points 1 year ago* (last edited 1 year ago) (4 children)

That's 150 years away, nobody's going to do shit until 2181, and then the whole world will freak out saying "why hasn't anyone done anything yet!?"

References: climate change, housing collapse in Western countries.

[–] [email protected] 12 points 1 year ago (1 children)

In 120 years, people will likely have a better idea of what the trajectory of Bennu will be. No one currently alive needs to do anything at all about this. This is a science experiment for our lifetimes.

[–] [email protected] 9 points 1 year ago

It's still good that they monitor and investigate stuff like this ahead of time. NASA, historically, has allowed for a ton of really cool practical advanced in technology to occur because of research they do on stuff like this, and I think it's entirely worth it to work on this kind of stuff even if we never have to actually shoot it down.

[–] [email protected] 8 points 1 year ago

And yet, the article is about how they're doing things already to prepare for the next appropriate action.

[–] [email protected] 4 points 1 year ago

I too saw Don't Look Up.

[–] [email protected] 2 points 1 year ago

In 150 years industrial society won't even exist anymore. If we're very lucky humans still might be around and the planet doesn't look like Venus, but I wouldn't bet on that

[–] [email protected] 14 points 1 year ago (1 children)

NASA already landed a spacecraft on Bennu and picked a sample. It’s due to arrive on Earth in just three days.

[–] [email protected] 4 points 1 year ago (1 children)

NASA thinks it's a sample of the rock. What if...

Well, enjoy the next three days.

[–] [email protected] 2 points 1 year ago (1 children)
[–] [email protected] 1 points 1 year ago

Call them Boeing bombs

[–] [email protected] 8 points 1 year ago (3 children)

Afterwards we discover that Bennu housed an alien species, far more advanced but peaceful isolationists. Well, until we blew their home up.

[–] [email protected] 8 points 1 year ago (1 children)

Good. At least we won't have to worry about retaliation, dead and peaceful means we're double safe.

[–] [email protected] 9 points 1 year ago

This guy dark forests.

[–] [email protected] 3 points 1 year ago (1 children)

America 2 needed the space oil.

[–] [email protected] 2 points 1 year ago

That'd be on Titan tho, rather than some asteroid

[–] [email protected] 3 points 1 year ago (1 children)
[–] [email protected] 2 points 1 year ago (1 children)

160 years ago, NASA already stole some of their rocks. Now, they're back for revenge. Written by Google's Chat-GPT 14 and directed by the MPAA, Midjourney's Bruce Willis stars in the latest Amazon production: Bennu There Done That. Sponsored by McDonald's and available exclusively on Hulu.

You can skip this ad in 186 minutes, or if you'd like to be connected to Emergency Services sooner, consider upgrading to 911+ Premium™️ Instant Plan for only $24 more per week.

[–] [email protected] 2 points 1 year ago

Honestly, will probably see some of this in my lifetime.

Unfortunately.