TE
TechEcho
Home24h TopNewestBestAskShowJobs
GitHubTwitter
Home

TechEcho

A tech news platform built with Next.js, providing global tech news and discussions.

GitHubTwitter

Home

HomeNewestBestAskShowJobs

Resources

HackerNews APIOriginal HackerNewsNext.js

© 2025 TechEcho. All rights reserved.

New asteroid strike images show impact 'a lot bigger than expected'

122 pointsby docmechanicover 2 years ago

13 comments

somatover 2 years ago
When I was watching the show I was wondering why they did not put a second probe right behind the first to observe the impact.<p>And when I went looking for more information about DART it turns out they did. the LICIACube. very cool.<p>So now the question is why was this not mentioned in the nasa show(perhaps I missed it) and why have I not heard anything about LICIACube from anywhere else(perhaps I missed this as well).<p>did LICIACube fail and every one is being quiet about it?<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Double_Asteroid_Redirection_Test" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Double_Asteroid_Redirection_Te...</a>
评论 #33065055 未加载
评论 #33064894 未加载
评论 #33065424 未加载
db48xover 2 years ago
Asteroids are apparently a lot softer and fluffier than we thought. More like gravel and sand clumped together rather than being giant boulders.
评论 #33061550 未加载
评论 #33080243 未加载
评论 #33064163 未加载
评论 #33061867 未加载
评论 #33061778 未加载
biztosover 2 years ago
&gt; Astronomers rejoiced as NASA&#x27;s Double Asteroid Redirection Test (DART) impactor slammed into its pyramid-sized, rugby ball-shaped target…<p>Good thing it wasn’t torus-sized or they might have missed!
评论 #33064950 未加载
carlsborgover 2 years ago
Unfortunately this technology is likely to be weaponized at some point in the future as radiation-free multi-megaton munition. The project name does tell us that the goal is to redirection not destruction of the asteroid.
评论 #33065444 未加载
评论 #33065536 未加载
评论 #33065347 未加载
hypertele-Xiiover 2 years ago
So it &quot;looks good&quot; but that&#x27;s all we get for now. A dust plume.<p>What they can&#x27;t say yet, is if the asteroid&#x27;s trajectory was effected, at all.
评论 #33061985 未加载
评论 #33062193 未加载
评论 #33061984 未加载
评论 #33062141 未加载
stevecaliforniaover 2 years ago
This page shows like 15 copies of the same mildly NSFW ad. Surprised this is a thing on Spacedaily.
评论 #33062638 未加载
评论 #33063775 未加载
评论 #33063227 未加载
评论 #33062717 未加载
selimnairbover 2 years ago
This is a super cool mission involving collaboration with lots of other space missions to do something of practical and theoretical interest. Bravo!
adrianmonkover 2 years ago
I&#x27;m not a scientist, etc., but isn&#x27;t this potentially slightly bad news?<p>The more stuff getting knocked free, the less momentum gets imparted to the asteroid itself, so the less its course is changed.
评论 #33063328 未加载
verisimiover 2 years ago
&gt; Astronomers rejoiced as NASA&#x27;s Double Asteroid Redirection Test (DART) impactor slammed into its pyramid-sized, rugby ball-shaped target <i>11</i> million kilometres (6.8 million miles) from Earth on Monday night.<p>&gt; Hubble images from <i>22</i> minutes, five hours and eight hours after impact show the expanding spray of matter from where DART hit.<p>&gt; The Hera mission, which is scheduled to launch in October 2024 and arrive at the asteroid in 2026, had expected to survey a crater around 10 metres (<i>33</i> feet) in diameter.
hbossyover 2 years ago
I bet they were all disappointed because if there were no significant effect the next logical step is to allow the team try again with nukes.
评论 #33065068 未加载
jl6over 2 years ago
The variability of composition of asteroids, from rubble piles to solid masses, makes me think that future asteroid diversion missions will look not so much like a big gun fired at the last minute, and more like a decades-long programme of search, analysis, and engineering tailored to each target.
评论 #33064810 未加载
评论 #33065508 未加载
评论 #33064670 未加载
chiefalchemistover 2 years ago
Questions: are all asteroids relatively the same in composition, density, etc.?
评论 #33066351 未加载
rambambramover 2 years ago
Stop shooting sh!t at asteroids that are not heading for earth, please. You don&#x27;t know upfront what&#x27;s going to happen. What if the m0f0 splitted into two parts and one of the big parts was heading for earth now? Then what? Gonna play Armageddon, just as in the movies!?<p>There are more people on earth than only Americans, okay.<p>P.S. All jokes aside, all NASA people are probably very smart and sh!t, but please also think about all other people on earth. If you fvck up, you fvck up for everybody. Noblesse oblige. Space is pretty much unknown territory, be careful.
评论 #33064331 未加载
评论 #33064722 未加载