الرئيسية

‘Oumuamua: A Mysterious Interstellar Interloper

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Amaya Moro-Martin, Space Telescope Science Institute

During the formation of our solar system, a tremendous number of asteroids, comets, and planetesimals were ejected into interstellar space by gravitational encounters. If extrasolar planetary systems, which are now known to be quite common, experienced a similar development, then our galaxy should be teeming with these expelled objects. Astronomers were perplexed that none had been found passing through our solar system.

Then, in 2017, the discovery of ‘Oumuamua transformed the situation from puzzlement to bewilderment. Observations with a wide range of telescopes followed the brightness and trajectory of this first interstellar interloper but left important questions about its origin and composition unanswered. Further, what process was responsible for the non-gravitational acceleration found in its unbound orbit?

This cosmic visitor will not return to provide explanations. Thus, the intriguing inquiries ‘Oumuamua left behind will remain as we seek out and study other guests from beyond our solar system.

Host: Frank Summers, Space Telescope Science Institute
Recorded live on Tuesday, July 7, 2020
More information: www.stsci.edu/public-lectures

UFC 251 Embedded: Vlog Series – Episode 2

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Champ Alexander Volkanovski adjusts his training schedule to the time zone. Jessica Andrade, Rose Namajunas, and Max Holloway change up their camps for the COVID era. Headliner Jorge Masvidal pairs a Versace robe with a Trump mask.

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Minecraft: BEE SWARM SIMULATOR! (GROW FLOWERS & GET EPIC BEE PETS!) Modded Mini-Game

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Today we are playing Bee Swarm Simulator in Minecraft
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In this 1.12.2 Bee Swarm Simulator Modded Mini-Game:
Today we are playing Bee Swarm Simulator in Minecraft. We use our bees to grow flowers & collect money

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Walmart Employees Share Secrets

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UFC 251: Andrade vs Namajunas 2 – Former Champs Meet Again

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UFC 251 features a strawweight rematch between two former champions, Jessica Andrade and Rose Namajunas.

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UFC 251: Yan vs Aldo – For the Bantamweight Title

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Preview the bantamweight fight set to go down at UFC 251 for the vacant title between Petr Yan and Jose Aldo on July 11 in Abu Dhabi.

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