Science & Technology

What the Discovery of Exoplanets Reveals About the Universe | Jessie Christiansen | TED

What are the planets outside our solar system like? Astrophysicist and TED Fellow Jessie Christiansen has helped find thousands of them (and counting), and the variety is more wonderful and wild than you might imagine. She shares details on the trends emerging from the data — including the intriguing possibility of “super-Earths” — and what…

Published

on

What are the planets outside our solar system like? Astrophysicist and TED Fellow Jessie Christiansen has helped find thousands of them (and counting), and the variety is more wonderful and wild than you might imagine. She shares details on the trends emerging from the data — including the intriguing possibility of “super-Earths” — and what the discovery of exoplanets means for existential questions like: Where do we come from, and how did we get here?

If you love watching TED Talks like this one, become a TED Member to support our mission of spreading ideas:

Follow TED!
Twitter:
Instagram:
Facebook:
LinkedIn:
TikTok:

The TED Talks channel features talks, performances and original series from the world’s leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

Watch more:

TED’s videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy (). For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at

#TED #TEDTalks

56 Comments

  1. AlJabbar [ WestJava ] جــاوة الغــربـيـــة

    January 12, 2023 at 1:38 pm

    United Nations Secretary-General António Guterres with UN Messenger of Peace Yo-Yo Ma at a workshop in Vienna, Austria, bringing together refugee musicians, singers and percussionists to foster understanding and enrich society.

    _“The diverse group is sending a strong message of openness, respect and inclusion through the universal language of music.”_
    — António Guterres 🇺🇳
    Secretary-General of the United Nations
    (May 28, 2019)

  2. AlJabbar [ WestJava ] جــاوة الغــربـيـــة

    January 12, 2023 at 1:39 pm

    *☭*

    إن الكلمات لوحدها لا تستطيع سد احتياجات شعوبنا، ولن نسد هذه الاحتياجات إلا إذا عملنا بشجاعة على مدى السنين القادمة وإذا أدركنا حقيقة أن التحديات التي نواجهها تحديات مشتركة، وإذا أخفقنا في التصدي لها سيلحق ذلك الأذى بنا جميعا.

    لقد تعلمنا من تجاربنا الأخيرة ما يحدث من إلحاق الضرر بالرفاهية في كل مكان:

    – إذا ضعف النظام المالي في بلد واحد، وإذا أصيب شخص واحد بالإنفلونزا فسيعرض ذلك الجميع للخطر.

    – وإذا سعى بلد واحد وراء امتلاك السلاح النووي فسيزداد خطر وقوع هجوم نووي بالنسبة لكل الدول.

    – وعندما يمارس المتطرفون العنف في منطقة جبلية واحدة سيعرض ذلك الناس من وراء البحار للخطر.

    – وعندما يتم ذبح الأبرياء في دارفور والبوسنة سيسبب ذلك وصمة في ضميرنا المشترك..

  3. Scott's Photography Banzai

    January 12, 2023 at 1:44 pm

    Super interesting talk on exo-planets! It’s definitely an important topic. It’s cool to think she could be the “photographer” for the first real picture of an earth-like exo planet. 📷

    • 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

      January 12, 2023 at 1:51 pm

      _Yes—نعم_ 😊

  4. Leslie DeSouza

    January 12, 2023 at 1:47 pm

    You say we don’t know where we came from and how we got here. Yet it seems you’re trying to find what is not yet there, so you can tell us where it came from, (how it got there).
    That sounds to me like you’re looking for a consistent design without acknowledging there is a designer?
    I find it amazing that we can pursue theory as fact while we treat facts as theory.

    Purpose is evidence of a plan that requires responsibility and that, in turn, requires ACCOUNTABILITY, which we seem to be ultimately in denial of.

    It is IMPOSSIBLE to “find” a perpetrator unless we acknowledge a crime has been committed.

    Hope you have the interest to “find” what I’m saying worth pursuing.

  5. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:48 pm

    “When in doubt tell the truth. It will confound your enemies and astound your friends.”
    *— Mark Twain*

  6. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:48 pm

    “Always go too far, because that’s where you’ll find the truth.”
    *— Albert Camus*

  7. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:48 pm

    “Never tell the truth to those who are not worthy of it.”
    *— Mark Twain*

    • Umer Qaiser

      January 12, 2023 at 2:13 pm

      Good. But, how to decide who is worthy and who isn’t?

  8. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:48 pm

    “If you do not tell the truth about yourself you cannot tell it about other people.”
    *— Virginia Woolf*

  9. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:49 pm

    “Nobody is going to pour the truth into your brain. It’s something you have to find out for yourself.”

    *— Noam Chomsky*

  10. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:51 pm

    _❞ إن أدوات التواصل الاجتماعي ، صارت تمنح حق الكلام لفيالق من الاغبياء الحمقى ممن كانوا يتكلمون في الحانات فقط بعد تناول كأس من النبيذ، وكان يتم اسكاتهم فوراً.. أما الآن فلهم الحق بالكلام مثلهم مثل من يحمل جائزة نوبل.. إنه غزو البلهاء..!❝_
    —🌺 أومبرتو إيكو 🇯🇵

  11. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:54 pm

    “Truth alone will endure, all the rest will be swept away before the tide of time.”
    *— Mahatma Gandhi*

  12. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:54 pm

    “You must be the change you wish to see in the world.”
    *— Mahatma Gandhi*

  13. 阿卜杜·安拉٭٭٭⃝🇨🇳٭٭

    January 12, 2023 at 1:55 pm

    “When I despair, I remember that all through history the way of truth and love has always won. There have been tyrants and murderers and for a time they seem invincible, but in the end, they always fall… think of it, always.”
    *— Mahatma Gandhi*

    • Julipooh

      January 12, 2023 at 2:17 pm

      Why are you writing that kind of comments?

  14. POLICE STATE

    January 12, 2023 at 2:52 pm

    we have more to see of earth exploration, in words Jessie used; so much more. Ask an oceanographer, or surgeon, or Vet, or historian. Don’t discourage exploration saying Earth is done for your generation. Great job otherwise good on you.

  15. Didi K.

    January 12, 2023 at 3:08 pm

    She looks like she’s having fun ☺️..

  16. Ligia Sommers

    January 12, 2023 at 3:39 pm

    🙏🏻🪐✨🙏🏻

  17. Asım Ünlü

    January 12, 2023 at 3:45 pm

    I hope you will get to take that photo ☺️

  18. THM - The Healthy Man

    January 12, 2023 at 4:11 pm

    Successful people don’t become that way overnight. What most people see at a glance-wealth, a great career, purpose is the result of hard work and hustle over time. I pray that anyone who reads this will be successful in life..

  19. Unbound

    January 12, 2023 at 4:29 pm

    I feel like I have been lied to by the title and we learned NOTHING, but the fact this was a waste of time.

    • BigRalphSmith

      January 12, 2023 at 5:06 pm

      And here I thought that the title exactly captured the essence of what I watched and I found it interesting on top of that.
      Isn’t it strange how we could watch exactly the same thing and come away with such divergent opinions?
      Expectations are everything. When expectations are unrealistic, we get one viewpoint. When they are realistic, we get another.
      Amazing.

  20. Brian McInnis

    January 12, 2023 at 5:29 pm

    Planets. They’re called planets. We don’t call people from other families exopeople or other people’s houses exohouses. If the planets in question are extra-Solar, you’re welcome to specify that.

  21. Andriy Palamarchuk

    January 12, 2023 at 5:32 pm

    Why people post all these junk unrelated quotes under this beautiful video?

    • Cedie Garcia

      January 12, 2023 at 7:18 pm

      Bro I’m thinking the same, what is even the goal of these bots

    • Andriy Palamarchuk

      January 12, 2023 at 7:42 pm

      @Cedie Garcia , thank you for the comment. I hope we can push this thread to the top. Perhaps the point is to build up some kind of history for bot accounts? I don’t know.

    • Andriy Palamarchuk

      January 14, 2023 at 3:57 am

      We can also downvote all those junk comments.

  22. आदित्यAditya मेहेंदळेMehendale #BringBackDislikes

    January 12, 2023 at 7:13 pm

    Holy crap – spam-bots. Sooo many bots. YT – please use Google’s famed “algorithm” and so sth about this..

    • Andriy Palamarchuk

      January 14, 2023 at 4:02 am

      We can do something as well. I just went through the comments and dowvoted the bad comments and upvoted good ones (like yours 🙂).

  23. Krištof Nemček

    January 12, 2023 at 9:40 pm

    Very interesting Ted Talk, one of the best ones so far imo

  24. Gleyson Santos

    January 12, 2023 at 9:54 pm

    She is so passionate about his job
    It is inspiring

  25. John Meyer

    January 13, 2023 at 12:59 am

    Why is there so much spam?

    • Andriy Palamarchuk

      January 14, 2023 at 4:01 am

      Not sure. Asked myself. Lets upvote the good comments and downvote this junk.

    • Simon Gross

      January 14, 2023 at 6:31 am

      It’s almost like the comments from some other video got posted here by mistake

    • Andriy Palamarchuk

      January 14, 2023 at 11:31 pm

      @Simon Gross, I don’t think so. As you see all those junk comments contain quotes by famous people, not actually any meaningful feedback. Lets upvote and comment good comments, and downvote bad comments.

    • Simon Gross

      January 14, 2023 at 11:44 pm

      @Andriy Palamarchuk Can we do better than the upvote bots that are liking the spam posts?

  26. Michael Trower

    January 13, 2023 at 1:33 am

    waaay too short for a TED Talk.

  27. Rick Cullarn

    January 13, 2023 at 7:36 am

    Good on yer Lady!

  28. Andy Cordy

    January 13, 2023 at 7:41 am

    Inspirational. Thank you.

    • Malik Chrom

      January 14, 2023 at 2:49 am

      I think this delusional girl is wasting a lot of money!! Mankind has actually never seen a planet outside of our solar system, they think they have detected some indirectly, but i call BS!

    • Andy Cordy

      January 14, 2023 at 6:41 am

      @Malik Chrom That “girl” is a highly educated and experienced scientist. It is statistically impossible, to all intents and purposes, in a galaxy with trillions of star systems, that no other star should have planets. Ok. You are right, we have not yet “seen” one but we have seen where they are and in some cases the gravitational impact they have on their parent star. To “see” deep space requires more than our eyes. Without telescopes, we see hardly anything at all but wish to see more.
      I would accept that the argument that scientific endeavour is a waste of money to some people and that to some there is no benefit to knowing that the skies are populated by trillions of planets, some of which will be habitable.
      Far more money and effort is wasted in the pursuit of superstition and myth.

  29. Sasha Vlastuin

    January 13, 2023 at 7:46 am

    Awesome video & inspirational and I thank you for breaking it down!! Despite the economic recession, I’m so happy 😊I have been earning $60,000 returns from my $10,000 investment on short period.

    • Akilah Jamal

      January 14, 2023 at 12:22 am

      Tel_gram

    • Akilah Jamal

      January 14, 2023 at 12:22 am

      OfficialGeorgettewong

    • Akilah Jamal

      January 14, 2023 at 12:22 am

      Trade with her and remember to share testimonies with others ☝️😊🇦🇺🇺🇸

    • Schultzworld

      January 14, 2023 at 12:30 am

      Wow, I just looked her up on google and she’s a licensed broker, I am contacting her right away, thanks

  30. cybersekkin

    January 13, 2023 at 8:26 am

    suspected exo planets – the process she is using just identifies candidates it is not confirmation. It is great and a necessary step and excited, but vastly over stated here.

  31. KJ

    January 13, 2023 at 1:31 pm

    It’s incredible. 5000 in our limited view suggests they’re everywhere. It’s absurd that life developed here as it did if there’s no natural law that pushes it to happen.

  32. Ocean McIntyre

    January 14, 2023 at 1:45 am

    I hope you get to take that photo, too, Jessie. Thank you for doing your incredible job and for not giving up early on before you finally found your first exoplanet.

  33. Floyd Dwayne Viernum

    January 15, 2023 at 5:58 am

    The Milky Way is simply the label on the jar we are in. Our universe is in some kid’s science experiment. Can you imagine the size of the table she’s going to need to present us? I hope she wins first prize for her human ant farm.

  34. The Exoplanets Channel

    January 15, 2023 at 8:02 am

    *More than 60 habitable planets found!*

  35. Daffa Akmal Nugraha

    January 16, 2023 at 2:30 am

    a question pop up in my mind when I finished this video. If it’s really exist a planet that is similar to earth which support life of a creature, wouldn’t it be mean that planet will already has life on it just like the earth have humans, animals, and plants? If the statement of some religion believe we are the only living creature in the world, doesn’t that mean that there will be no planet similar to earth? hahaha

    • Sam NotLoading

      January 16, 2023 at 11:29 am

      We have found similar planets already. We do not know if life is out there but it’s an extremely low chance to have such developed life as we have on earth for all i know, so it’s unlikely. So far no earthlike planet is possible to travel to though, they are all to far away.

  36. king Jerry

    January 16, 2023 at 8:21 am

    With all this crisis happening around the world one needs to have different portfolio,I already invested in forex and crypto which are really profitable.

  37. Epifanio Torres

    January 17, 2023 at 2:54 pm

    👋👋👋👋I can only say, there is more to come, and I’m happy for it even if I don’t live to see it. My hope is that the anti-science establishment, (to whom science is their greatest threat), doesn’t derail your efforts.

Leave a Reply

Your email address will not be published. Required fields are marked *

Trending

Exit mobile version