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Using Earth to Understand How Water May Have Affected Volcanoes on Mars

2:29152 сл/минфраза ≈ 13 сл.редких 10 %

  1. In early 2015, Earth saw the birth of a new island ...the first of its explosive type in 53 years.
  2. The blast was so large that nearby tourists caught the explosion on camera.
  3. The new island, unofficially known as Hunga Tonga - Hunga Ha'apai,
  4. is located in the remote South Pacific, nestled between two other islands in the Kingdom of Tonga.
  5. It's the first island of its kind to erupt and persist in the modern satellite era,
  6. giving scientists an unprecedented view from space of its erosional evolution.
  7. The event immediately caught the attention of Dr. Jim Garvin, Chief Scientist at NASA's Goddard Space Flight Center, geomorphologist, and Mars expert.
  8. It should be a pile of basaltic anticidic rocks.
  9. That’s what you expect in this kind of setting...but there’s more.
  10. What does a Mars expert see in the island that the rest of us don't?
  11. I think these small islands, small volcanic islands, freshly made,
  12. evolving rapidly are windows into the role of surface waters on Mars as they have effected small land forms like volcanoes.
  13. And we see fields of them on Mars!
  14. The island dramatically changed shape and size every day for the first few months About six months in, it finally stabilized.
  15. We watched this island change.
  16. And it got more and more exciting.
  17. It didn’t wash away.
  18. While there was massive erosion, there was redeposition, protecting the island.
  19. Similar processes seen on Earth may have been at work two or three billion years ago
  20. on Mars - persistent surface waters that may have fashioned the Martian terrain that is evident there today.
  21. The truth is the two systems are actually cosmically related Our understanding of landforms on distant planets
  22. is directly informed by studying the evolution of similar features on Earth.
  23. Earth is a magical place because, really,
  24. it’s our point of departure for everything And we come to realize in the last hundred years or so
  25. that it’s a far more dynamic world than we ever thought.

Об этом ролике

Скорость речи152 слова в минуту — средний темп
Средняя фраза13.2 слова, всего фраз: 25
Редкие слова9.6 % (вне 5000 самых частых)
ИсточникNASA, Центр космических полётов имени Годдарда (GSFC)
Исходная записьimages.nasa.gov — GSFC_20180608_Tonga_m12932_Volcanoes, 2018 год
ЛицензияОбщественное достояние (материалы NASA)
Субтитрыфайл субтитров NASA из той же записи; убраны пометки вроде [music] и метки говорящего, реплики заново разбиты на предложения
ПодписьВидео и субтитры: NASA/GSFC (images.nasa.gov)
На сайте с7 ноября 2026 — с открытия сайта

Скачать: MP4 720p · MP4 360p · субтитры .vtt

Слова, которые стоит посмотреть заранее

Редкие слова этого ролика в порядке появления — без имён и названий.

  • explosive
  • tourists
  • unofficially
  • nestled
  • erupt
  • persist
  • unprecedented
  • erosional
  • evolution
  • geomorphologist
  • basaltic
  • anticidic
  • volcanic
  • evolving
  • rapidly
  • volcanoes
  • dramatically
  • stabilized
  • erosion
  • redeposition
  • persistent
  • terrain
  • evident
  • cosmically

Описание от NASA (по-английски)

This scientific data visualization shows the evolution of the newly-erupted island in the Kingdom of Tonga. Results of this study can enhance our understanding of numerous small volcanic landforms on Mars whose formation may have been in shallow-water environments during epochs when persistent surface water was present.

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