194
Asteroid nearly hits Earth in Siberia, with a 2nd massive asteroid passing this week
(abcnews.go.com)
this post was submitted on 04 Dec 2024
194 points (94.5% liked)
World News
39212 readers
3506 users here now
A community for discussing events around the World
Rules:
-
Rule 1: posts have the following requirements:
- Post news articles only
- Video links are NOT articles and will be removed.
- Title must match the article headline
- Not United States Internal News
- Recent (Past 30 Days)
- Screenshots/links to other social media sites (Twitter/X/Facebook/Youtube/reddit, etc.) are explicitly forbidden, as are link shorteners.
-
Rule 2: Do not copy the entire article into your post. The key points in 1-2 paragraphs is allowed (even encouraged!), but large segments of articles posted in the body will result in the post being removed. If you have to stop and think "Is this fair use?", it probably isn't. Archive links, especially the ones created on link submission, are absolutely allowed but those that avoid paywalls are not.
-
Rule 3: Opinions articles, or Articles based on misinformation/propaganda may be removed. Sources that have a Low or Very Low factual reporting rating or MBFC Credibility Rating may be removed.
-
Rule 4: Posts or comments that are homophobic, transphobic, racist, sexist, anti-religious, or ableist will be removed. “Ironic” prejudice is just prejudiced.
-
Posts and comments must abide by the lemmy.world terms of service UPDATED AS OF 10/19
-
Rule 5: Keep it civil. It's OK to say the subject of an article is behaving like a (pejorative, pejorative). It's NOT OK to say another USER is (pejorative). Strong language is fine, just not directed at other members. Engage in good-faith and with respect! This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban.
Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.
-
Rule 6: Memes, spam, other low effort posting, reposts, misinformation, advocating violence, off-topic, trolling, offensive, regarding the moderators or meta in content may be removed at any time.
-
Rule 7: We didn't USED to need a rule about how many posts one could make in a day, then someone posted NINETEEN articles in a single day. Not comments, FULL ARTICLES. If you're posting more than say, 10 or so, consider going outside and touching grass. We reserve the right to limit over-posting so a single user does not dominate the front page.
We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.
All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.
Lemmy World Partners
News [email protected]
Politics [email protected]
World Politics [email protected]
Recommendations
For Firefox users, there is media bias / propaganda / fact check plugin.
https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/
- Consider including the article’s mediabiasfactcheck.com/ link
founded 2 years ago
MODERATORS
Someday.
This article is mostly a week in the life of our modern detection and monitoring systems, but of course everyone is immediately sucked into the topic of armageddon. The more we can detect, the more insignificant or only mildly interesting objects we will become aware of. So get used to it. There’s going to be asteroid news in our future other than “END OF WORLD NIGH.”
A 27-inch asteroid
Shameless clickbait headline.
Depends on how fast it’s going.
AFAIK meteors come with a velocity spread of about a digit, which translates to a couple digits of energy, and then back to a single digit of blast radius. In Siberia that's a nothingburger all around.
Also, the headline did say "massive".
Headline is tricksy, first mention of "asteroid" (referring to the small one) isn't with the descriptor "massive", but the second one is.
They just added the one that's gonna miss so they could get "massive" in the headline.
Also, one can play around with asteroid impacts with this fun little tool.
https://neal.fun/asteroid-launcher/
Only goes down to 1m, so larger than what it was. Iron core and I put it to 100km/s (fastest you can in that, default being like 17km/s) dropped it in Siberia, and it blew up 53 km above the ground. Tried again with switching angle to straight down and...
Can you please course correct? Earth has a nasty infestation that needs some clearing
load more comments
(1 replies)
Separately, a larger asteroid, 2020 XR, measuring 1,200 feet in diameter, will safely pass Earth on Wednesday at a distance of 1.37 million miles.
Boo you whore
Fucking teasing bitch.
Feel free to criticize the Jerusalem Post for other reasons, they deserve it, but their reports on near-miss asteroids where they compare their size to random things is always amusing.
It's amusing, but not very helpful. Granted, what could the average reader do with an exact size, besides adjust their level of panic?
On second thought, the first one is very easy to picture 😺😸
No banana for scale?
Who's aiming these things? If you're gonna keep throwing them at Russia, then at least put a crater where Putin's hiding.
load more comments
(1 replies)
Wife saw two shooting stars in short succession a few days ago. I wonder if it was little grains preceding this guy or just random junk.
What is an inch, what is a mile, what is a feet?
Is this even about space?
A mile consists of a lot of feet
A foot consists of many inches
Easy peasy.
How many eagles in a mile in freedom units?
We talking wingspan or beak to tip?
Butt to silencer
I'd love to know what percentage of the Earth's population would be totally fine with an asteroid taking us all out. I'd be willing to bet it's higher that it's ever been.
On some sardonic humor level, sure. But I don’t think many people are actually ready to die tomorrow, and no one is ready for an impactor that does something in between like plunge us into 200 years of suffering because we can’t grow 70% of the crops we need.
I'd rather we get eradicated but the rest of nature is fine.
There is a deep sea and creatures living deeply underground. Chance is even if an even wiped out everything on the surface of the earth after some few million years the surface is populated again.
Better a terrible end than unending terror
Please let it be soon
load more comments
(1 replies)
Comparing a 27" asteroid and a 1200' asteroid as comparable seems wack
The point is, if they could detect a 27” asteroid, something bigger won’t be an issue [for detection].
The impacts are not comparable but perhaps in terms of detection methods they are handled mostly the same. On the one hand, being able to detect a 27 inch asteroid doesn’t matter much but on the other hand, if you can detect something that small, maybe you can detect anything that does matter. Unfortunately, I don’t think asteroid size is the only factor in detectability. A lot of it has to do with which direction it is coming from and if that is functionally obscured by the Sun or other objects.
I don't understand why imperialists decided to use one apostrophe to indicate the larger unit and two to indicate the smaller unit. It makes no bloody sense.
Uh I’d just like to point out that a meter is m and a milimeter, which is shorter, is mm. So y’all apparently don’t make any bloody sense in metric either.
' = foot
'' = foot foot?
mm = meter meter so 2 meters amirite?
Making fun of the imperial system is an old game and so easy to play that I’ve never seen anyone actually lose at it, until now. LOL
says "mm = millimeters" next response "mm = meter meter". Good troll. Truly outwitted yourself there.
Reaching. Anyway…
There's a long list of things we do that make no sense. We've got damn good food though
load more comments
(5 replies)
Separately, a larger asteroid, 2020 XR, measuring 1,200 feet in diameter, will safely pass Earth on Wednesday at a distance of 1.37 million miles.
If we pray to it, do you think it'll deign to hit us?
Unfortunately, it’s only like 350 meters wide.
The big one that took out the dinosaurs was 10 to 15 kilometers.
A 350 meter asteroid would just make a lot of noise and make a little splash if it survived to hit the ocean, or a little hole in the ground if it managed to strike land.
We need to pray for bigger space rocks.
350m is definetely going to make a strong impact.
The Tunguska Asteroid was expected to be 50-60m in width https://en.wikipedia.org/wiki/Tunguska_event
And that released 3 - 50 Megatons of energy. For reference the nukes on Hiroshima and Nagasaki had about 20 kilotons. So about a one thousands of that. The greatest man made explosion, the sowjet Tsar bomb had about 50 Megatons of energy.
A 350m asteroid has about 7 times that length and probably at least three times the diameter. So we are looking at an impact with the mass of at least 50x that, so 150 - 2500 Megatons. If that hits central Europe the immediate blast would probably kill a few hundred million people.
load more comments
(2 replies)
load more comments
(11 replies)
view more: next ›