[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Board
Settings Mobile Home
/sci/ - Science & Math


Thread archived.
You cannot reply anymore.


[Advertise on 4chan]


Not a regular on this board but I have a question for you nerds. They say this asteroid will "pass closer than our satellites", but there's no way something gets that close to Earth without being pulled-in by gravity and hitting us. What's the science behind it?
>>
If it's fast enough it can scoot past us without much change to its trajectory.
>>
>>17044416
Basically in the early 2020s the calculations said it was going to crash into Earth and kill everyone, but they didn't like the results so they did the calculations again and again until they got the current result that it won't. The topic is closed now
>>
>>17044416
for the same reason the satellites aren't pulled in and hit the Earth.
it's going to fast.
>>
>>17044471
I've been fasting since yesterday and I'm still not floating retard
>>
>>17044472
That's because Allah's hand holds you firm, my brother. Inshallah
>>
File: 1644196209638.jpg (64 KB, 828x631)
64 KB JPG
it is being pulled in by Earth's gravity, enough to alter its trajectory slightly but not enough to hit. It's like a small bend in the road and if Earth was larger or the asteroid slower then it would be a sharper turn
>>
>>17044468
It's over, isn't it?
>>
>>17044416
That's not how gravity works and we have satellites pretty far out.
>>
>>17044416
It's not gonna hit us... but I wish it would. I feel like a city getting wiped the fuck off the map is what it would take to finally get countries thinking seriously about spaceflight again instead of the pointless jerking off we've been doing the last 20 years.
>>
>>17044492
This thing is bigger than a city buster. It could kill a country quite comfortably, not quite end of the world but it would be a very bad day.
>>
>>17044532
Which country do we like least on 4chan?
>>
Velocity
>>
>>17044416
>What's the science behind it?
Look up "hyperbolic orbit".

>>17044468
>until they got the current result that it won't. The topic is closed now
Imagine if they found that it would hit Tehran? Pretty sure they would close the topic.
>>
>>17044553
I mean... do you have to ask?
>>
File: 1649230785562.jpg (157 KB, 1024x1024)
157 KB JPG
>>17044416
>>
File: 1480307021512.jpg (676 KB, 2048x2048)
676 KB JPG
>>
>>17044416
>closer than our satellites"
we have those in geosync orbit, they pretty far compared to spacex internet shit which are barely above the atmosphere, which is a thin line of gas anyway

>but there's no way something gets that close to Earth without being pulled-in by gravity
what is perigee
>>
>>17045117
gavity does that
>>
>>17044468
Oh God.
>>
>>17045118
https://www.reddit.com/r/askscience/comments/dsq1e1/why_arent_there_any_uneditedstitched_photosvideos/
>>
>>17045118
https://himawari8.nict.go.jp/
>>
>>17044468
>kill everyone
it's too small for that, at most it could wipe out a city
>>
>>17045370
how do you wipe out a city without killing everyone?
>>
>>17044468
this

stop asking questions. the trust the experts
>>
>>17045382
With a tissue?
>>
>>17044553
yours
>>
>>17044680
is it "oy vey" or "do not redeem"?
>>
>>17045370
kek imagine it crashing into dc or moscow or beijing and starting a global nucular exchange
>>
File: trenchcoat-pepe.png (28 KB, 788x699)
28 KB PNG
>>17044468
I just ran a few clank-u-lations on the possible impact energy and only got in the range of 2-4 teratons; corresponding to a crater up to tens of kilometers wide but far short of an extinction event.

If the current trajectory estimates are proven wrong, I think just evacuating around the impact area and likely grounding air traffic for weeks after would be the only necessary measures unless it's hitting some buildings way more expensive than trying to nuke it.

>>17045920
it could take out a major city if it were indeed really on an Earth impact trajectory, but I think it would be very obvious that the explosion was way too huge to be nuclear.
>>
>>17045933
you know the meteorite that killed the dinosaurs also cause a crater only tens of kilometers wide right?



[Advertise on 4chan]

Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.