Sounds from Earth

Space is full of radio waves, and those waves, just like the ones bouncing through the Earth’s atmosphere, can be converted into audible sounds.

The recording starts with the patter of a summer squall. Later, a drifting tone like that of a not-quite-tuned-in radio station rises and for a while drowns out the patter.

These are the sounds encountered by NASA’s Cassini spacecraft as it dove through the gap between Saturn and its innermost ring on April 26, the first of 22 such encounters before it will plunge into Saturn’s atmosphere in September. What Cassini did not detect were many of the collisions of dust particles hitting the spacecraft as it passed through the plane of the rings. “You can hear a couple of clicks,” said William S. Kurth, a research scientist at the University of Iowa who is the principal investigator for Cassini’s radio and plasma science instrument.

Recording dust hits

Our officeThe few dust hits that were recorded sounded like the small pops caused by dust on a LP record, he said. What he had expected was something more like the din of “driving through Iowa in a hailstorm,” Dr. Kurth said.

Since Cassini had not passed through this region before, scientists and engineers did not know for certain what it would encounter. Cassini would be traveling at more than 70,000 miles per hour as it passed within 2,000 miles of the cloud tops, and a chance hit with a sand grain could be trouble.

The analysis indicated that the chances of such a collision were slim, but still risky enough that mission managers did not send Cassini here until the mission’s final months. As a better-safe-than-sorry precaution, the spacecraft was pointed with its big radio dish facing forward, like a shield.

Not only was there nothing catastrophic, there was hardly anything at all.

The few clicking sounds were generated by dust the size of cigarette smoke particles about a micron, or one-25,000th of an inch, in diameter. To be clear: Cassini did not actually hear any sounds. It is, after all, flying through space where there is no air and thus no vibrating air molecules to convey sound waves. But space is full of radio waves, recorded by Dr. Kurth’s instrument, and those waves, just like the ones bouncing through the Earth’s atmosphere to broadcast the songs of Bruno Mars, Beyoncé and Taylor Swift, can be converted into audible sounds.

Bottom line

Dr. Kurth said the background patter was likely oscillations of charged particles in the upper part of Saturn’s ionosphere where atoms are broken apart by solar and cosmic radiation. The louder tones were almost certainly “whistler mode emissions” when the charged particles oscillate in unison.

1 comments on “Sounds from Earth

  1. Nice post. I learn something more challenging on different blogs everyday. It will always be stimulating to read content from other writers and practice a little something from their store. I’d prefer to use some with the content on my blog whether you don’t mind. Natually I’ll give you a link on your web blog. Thanks for sharing.

  2. You really make it appear really easy with your presentation but I to find this topic to be actually one thing that I think I would never understand. It sort of feels too complex and very large for me. I am having a look ahead to your subsequent put up, I?¦ll try to get the grasp of it!

  3. Hello there, You’ve done a fantastic job. I’ll certainly digg it and in my opinion recommend to my friends. I am sure they will be benefited from this web site.

  4. I’ve been surfing on-line greater than 3 hours these days, but I never found any attention-grabbing article like yours. It is pretty price enough for me. In my opinion, if all webmasters and bloggers made good content as you probably did, the net might be much more helpful than ever before. “When there is a lack of honor in government, the morals of the whole people are poisoned.” by Herbert Clark Hoover.

  5. I’m not that much of a online reader to be honest but your blogs really nice, keep it up! I’ll go ahead and bookmark your website to come back in the future. Cheers

  6. you are in point of fact a excellent webmaster. The web site loading velocity is amazing. It seems that you are doing any unique trick. Moreover, The contents are masterwork. you’ve performed a magnificent process in this topic!

  7. Great website you have here but I was wanting to know if you knew of any discussion boards that cover the same topics talked about here? I’d really love to be a part of online community where I can get opinions from other experienced people that share the same interest. If you have any suggestions, please let me know. Appreciate it!

  8. I have been exploring for a little bit for any high quality articles or blog posts on this sort of area . Exploring in Yahoo I at last stumbled upon this site. Reading this information So i am happy to convey that I’ve an incredibly good uncanny feeling I discovered just what I needed. I most certainly will make certain to don’t forget this site and give it a glance on a constant basis.

  9. Wow, amazing blog structure! How long have you been blogging for?

    you made blogging glance easy. The full glance of your site is
    great, let alone the content material! You can see similar here
    ecommerce

  10. Wow, superb blog structure! How lengthy have you been running a blog for?
    you make running a blog look easy. The overall look of your web site is great, let alone the
    content! You can see similar here sklep online

  11. Wow, marvelous blog structure! How long have you ever been running a
    blog for? you made blogging look easy. The total look
    of your web site is wonderful, as neatly as the content material!
    You can see similar here najlepszy sklep

  12. Hello there! Do you know if they make any plugins to assist with SEO?
    I’m trying to get my blog to rank for some targeted keywords but I’m
    not seeing very good gains. If you know of any please share.
    Many thanks! You can read similar article here: Dobry sklep

  13. Hi there! Do you know if they make any plugins to assist with SEO?

    I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very
    good gains. If you know of any please share. Many thanks!
    You can read similar text here: Sklep internetowy

  14. Some truly wonderful info , Gladiola I noticed this. “What happens is not as important as how you react to what happens.” by Thaddeus Golas.

  15. Hi, Neat post. There’s a problem with your site in internet explorer, would check this… IE still is the market leader and a good portion of people will miss your wonderful writing due to this problem.

  16. My programmer is trying to persuade me to move to .net from PHP.
    I have always disliked the idea because of the expenses.
    But he’s tryiong none the less. I’ve been using WordPress on numerous websites for about a year and am worried about switching to another platform.
    I have heard very good things about blogengine.net. Is there
    a way I can transfer all my wordpress content into it?
    Any help would be greatly appreciated!

  17. Howdy! Do you know if they make any plugins to assist with SEO?
    I’m trying to get my site to rank for some
    targeted keywords but I’m not seeing very good results.
    If you know of any please share. Thanks! You can read similar blog here: Backlink Portfolio

  18. Hello! Do you know if they make any plugins to assist with SEO?

    I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good gains.
    If you know of any please share. Thanks! You can read similar text here: Link Building

  19. Hey there! Do you know if they make any plugins to help with Search
    Engine Optimization? I’m trying to get my website to rank for some targeted
    keywords but I’m not seeing very good success. If you know of any please share.
    Thanks! I saw similar art here: Link Building

  20. What Is Puravive? Puravive is a natural weight loss supplement that is known to boost the metabolic processes of the body.

  21. [URL=http://artem-energo.ru/forums.php?m=posts&q=16011&n=last ]Купить диплом РІ ангарске[/URL] постановляется вопросом для массы, кому попадает со потребностью получить законное свидетельство о учебе.
    Текущие технологические разработки и развитие интернет-рынка позволяют найти множество возможностей для покупки аттестата.
    Однако, отбор проверенного поставщика делается существенным аспектом этого процесса.
    Часть организации предлагают изготовление аттестатов с небольшими затратами со стороны заказчика, впрочем не всегда степень качества этих документов соответствует.
    Необходимо отбирать гарантированные и рекомендуемые поставщики, где можно достать свидетельство со гарантированным качественной степенью и подлинностью.
    Одновременно, стоит помнить не только стоимость, а также имидж компании, отзывы заказчиков или возможность получать консультацию до приобретением.
    Адекватный выбор поможет предотвратить неблагоприятных последствий действий или гарантирует успех в имеющейся необходимого для решения задачи бумаги.

  22. [URL=https://priroda.inc.ru/infa/inf6.html]http://project.megarulez.ru/forums/showthread.php?t=21026&all=true[/URL] – – Таков способ получить официальный документ о завершении образовательного учреждения. Свидетельство раскрывает пути к последующим карьерным возможностям и карьерному развитию.

  23. Howdy very cool website!! Man .. Beautiful .. Wonderful .. I will bookmark your website and take the feeds additionally?KI’m happy to seek out numerous helpful information right here in the post, we need work out more techniques on this regard, thank you for sharing. . . . . .

  24. hello!,I love your writing so so much! share we keep in touch more approximately your article on AOL? I need an expert on this house to resolve my problem. Maybe that’s you! Having a look ahead to peer you.

  25. Have you ever thought about adding a little bit more than just your
    articles? I mean, what you say is fundamental and everything.

    But think about if you added some great images or video clips to give
    your posts more, “pop”! Your content is excellent but
    with pics and clips, this blog could certainly be one
    of the very best in its niche. Great blog!

  26. Hi there! I know this is kind of off topic but I
    was wondering if you knew where I could get a captcha plugin for my comment form?
    I’m using the same blog platform as yours and I’m having problems finding one?
    Thanks a lot!

  27. Oh my goodness! an amazing article dude. Thanks However I’m experiencing problem with ur rss . Don’t know why Unable to subscribe to it. Is there anyone getting similar rss problem? Anyone who is aware of kindly respond. Thnkx

  28. My partner and I absolutely love your blog and find the majority of your post’s to be exactly what I’m looking
    for. Does one offer guest writers to write content for you?
    I wouldn’t mind composing a post or elaborating on a lot of the subjects you write
    about here. Again, awesome site!

  29. I’ve been exploring for a little bit for any high-quality articles or blog posts on this kind of area . Exploring in Yahoo I at last stumbled upon this site. Reading this info So i am happy to convey that I have a very good uncanny feeling I discovered just what I needed. I most certainly will make certain to don’t forget this site and give it a glance on a constant basis.

  30. I have read so many content on the topic of the blogger lovers however this piece of writing is in fact a fastidious piece of writing, keep it up.

  31. We absolutely love your blog and find the majority of your post’s to be what precisely I’m looking
    for. Would you offer guest writers to write content for you?
    I wouldn’t mind producing a post or elaborating on many of the subjects you write with regards to here.
    Again, awesome web log!

  32. You are so awesome! I don’t believe I’ve read anything
    like this before. So good to discover somebody with a few genuine thoughts on this issue.
    Seriously.. thank you for starting this up. This website is something that is needed
    on the internet, someone with a little originality!

  33. I’m really inspired together with your writing talents as well as with the
    structure for your blog. Is that this a paid theme or did you modify it yourself?

    Anyway keep up the nice high quality writing, it’s rare to look a nice
    blog like this one today..

  34. It’s really a great and helpful piece of info.
    I’m glad that you just shared this useful information with us.
    Please keep us up to date like this. Thank you for sharing.

  35. If some one wishes expert view regarding running a blog after that i propose him/her to visit this
    website, Keep up the good work.

  36. Very nice post. I simply stumbled upon your blog and wished to mention that
    I have really enjoyed surfing around your weblog posts.
    In any case I’ll be subscribing in your rss feed and I’m hoping you
    write once more soon!

  37. Hello it’s me, I am also visiting this website daily, this site is actually fastidious and the viewers are genuinely sharing fastidious
    thoughts.

  38. Hey there! Do you know if they make any plugins to safeguard against
    hackers? I’m kinda paranoid about losing everything I’ve worked hard
    on. Any suggestions?

  39. Great blog here! Additionally your website loads up fast!
    What web host are you using? Can I get your associate hyperlink in your host?

    I want my web site loaded up as quickly as yours lol

  40. You really make it appear so easy along with your presentation however I in finding this topic to be really one thing that I believe I’d never understand.
    It seems too complicated and very broad for me. I’m looking ahead on your subsequent put up, I’ll try to get the
    grasp of it!

  41. I don’t even know how I ended up here, but I thought this post was good.

    I don’t know who you are but certainly you are going to a famous blogger
    if you aren’t already 😉 Cheers!

  42. It’s awesome to pay a visit this web site and reading the views of
    all friends on the topic of this paragraph, while I am also
    eager of getting knowledge.

  43. It’s an amazing paragraph in favor of all the internet users; they will take advantage from it I am sure.

  44. Link exchange is nothing else except it is simply placing the other person’s webpage link on your page at appropriate place and other person will also
    do similar in favor of you.

  45. Hurrah! At last I got a web site from where I can genuinely obtain helpful facts concerning my study and
    knowledge.

  46. After checking out a handful of the blog articles on your blog, I truly like your way of blogging.
    I added it to my bookmark webpage list and will be checking back in the near future.
    Please check out my web site as well and let me know what you think.

  47. My brother recommended I might like this blog. He was once entirely right.

    This publish actually made my day. You can not imagine simply how much time I
    had spent for this info! Thanks!

  48. Oh my goodness! Impressive article dude! Thank you so much, However I
    am experiencing issues with your RSS. I don’t know why
    I can’t subscribe to it. Is there anybody else getting identical RSS
    problems? Anyone that knows the answer can you kindly respond?
    Thanx!!

  49. I will right away grasp your rss feed as I
    can’t in finding your e-mail subscription hyperlink or
    newsletter service. Do you have any? Please allow me know so that I may
    subscribe. Thanks.

  50. Good blog you have got here.. It’s difficult to find high-quality writing like yours these days.

    I really appreciate individuals like you! Take care!!

  51. I’ve learn several excellent stuff here. Certainly value bookmarking for revisiting. I surprise how much effort you place to make this type of magnificent informative web site.

  52. Definitely consider that that you stated. Your favourite justification appeared to
    be on the net the simplest factor to take into account
    of. I say to you, I definitely get irked even as people think about issues that they just do
    not know about. You controlled to hit the nail upon the top
    as well as outlined out the whole thing without having side effect , other people could
    take a signal. Will likely be again to get more.
    Thank you

  53. Excellent post. I was checking continuously this blog and I’m impressed!

    Extremely useful information specifically the last part
    🙂 I care for such info much. I was seeking this particular information for a very long time.

    Thank you and good luck.

  54. If you are going for most excellent contents like myself,
    simply pay a visit this website everyday because it gives
    quality contents, thanks

  55. What’s up all, here every person is sharing
    these kinds of familiarity, thus it’s nice to read this web site, and I used to visit this weblog every day.

  56. Hello, i feel that i noticed you visited my weblog so i came to “return the prefer”.I am trying to in finding things to improve my web site!I guess its good enough to use a few of your concepts!!

  57. I believe what you posted was actually very reasonable.
    But, what about this? what if you added a little content?

    I am not suggesting your information is not solid., however what if you added a post title
    that grabbed people’s attention? I mean Sounds from Earth – ERS
    Training is a little plain. You ought to glance at Yahoo’s home page and note how they create article
    titles to grab viewers to open the links. You might add a video or a related pic or two to get readers interested about what you’ve written. Just my opinion, it might
    bring your posts a little bit more interesting.

  58. I conceive this internet site holds some rattling wonderful information for everyone. “As we grow oldthe beauty steals inward.” by Ralph Waldo Emerson.

  59. I’ve been browsing on-line greater than three hours lately,
    yet I never discovered any attention-grabbing article like yours.
    It’s lovely price enough for me. In my view, if all website owners and
    bloggers made just right content material as you probably did,
    the net shall be a lot more helpful than ever before.

  60. excellent put up, very informative. I ponder why the opposite experts of
    this sector do not understand this. You must proceed your writing.

    I’m confident, you’ve a huge readers’ base already!

  61. Hey there just wanted to give you a quick heads up. The words in your content seem to be running off the
    screen in Internet explorer. I’m not sure if this is a format issue
    or something to do with internet browser compatibility but I figured I’d post to let you know.
    The layout look great though! Hope you get the
    problem fixed soon. Many thanks

  62. Hello to every one, the contents present at this web page are genuinely amazing for people
    knowledge, well, keep up the nice work fellows.

  63. Hello, you used to write fantastic, but the last several posts have been kinda boring… I miss your super writings. Past few posts are just a bit out of track! come on!

  64. Hi there just wanted to give you a quick heads up. The words in your
    post seem to be running off the screen in Ie. I’m not
    sure if this is a format issue or something to do with browser compatibility but I figured I’d post to
    let you know. The style and design look great though!

    Hope you get the issue resolved soon. Cheers

  65. Fascinating blog! Is your theme custom made or did you
    download it from somewhere? A design like yours with a
    few simple adjustements would really make my blog shine.
    Please let me know where you got your theme. Bless you

  66. Asking questions are in fact nice thing if you are not understanding anything fully, but this piece of
    writing provides nice understanding yet.

  67. You made some good points there. I looked on the internet for more info about the issue and
    found most individuals will go along with your views on this site.

  68. Wow, fantastic blog layout! How long have you been blogging for?

    you make blogging look easy. The overall look of your web site is wonderful, let alone the
    content!

  69. Hello, Neat post. There is an issue with your site in internet explorer, could check this?
    IE still is the market chief and a good part of other people will miss your great writing because
    of this problem.

  70. I enjoy, lead to I found just what I was taking a look for.
    You’ve ended my 4 day long hunt! God Bless you man. Have a
    great day. Bye

  71. What i don’t realize is in reality how you’re now not actually a lot more well-appreciated than you might be right now. You’re very intelligent. You understand thus significantly with regards to this topic, made me personally consider it from numerous various angles. Its like women and men are not fascinated until it¦s something to do with Girl gaga! Your individual stuffs excellent. Always care for it up!

  72. F*ckin¦ awesome things here. I am very satisfied to see your post. Thanks a lot and i am looking forward to contact you. Will you please drop me a mail?

  73. Great amazing issues here. I am very happy to peer your article. Thank you so much and i’m looking forward to contact you. Will you kindly drop me a e-mail?