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  1. ʻOumuamua
    ʻOumuamuaInterstellar object
    SizeMassCompositionCharacteristicsDistance from earthDiscoveryOrbitControversy
     
  2. Wikipedia
    https://en.wikipedia.org › wiki › ʻOumuamua

    ʻOumuamua - Wikipedia

    • The name comes from Hawaiian ʻoumuamua 'scout' [38] (from ʻou 'reach out for' and mua, reduplicated for emphasis 'first, in advance of' [4]), and reflects the way the object is like a scout or messenger sent from the distant past to reach out to humanity. It roughly translates to 'first distant messenger'. See more

    Overview

    ʻOumuamua is the first interstellar object detected passing through the Solar System. Formally designated 1I/2017 U1, it … See more

    Naming

    As the first known object of its type, ʻOumuamua presented a unique case for the International Astronomical Union, which assigns designations for astronomical objects. Originally classified as comet C/2017 U1… See more

    See more images of ʻOumuamua
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    Discovered byRobert Weryk using Pan-STARRS 1
    Discovery siteHaleakalā Obs., Hawaii
    Discovery date19 October 2017
    MPC designation1I/2017 U1
    Observations

    Observations and conclusions concerning ʻOumuamua's trajectory were primarily obtained with data from the Pan-STARRS1 Telescope, part of the Spaceguard Survey, and the Canada–France–Hawaii Telescope (CFHT), an… See more

    Discussion

    Outgassing of nitrogen ice (N2) could explain why no outgassing was detected. Nitrogen ice the size of 'Oumuamua could survive for 500 million years in the interstellar medium and would reflect two-thirds of th… See more

    See also

    • 2I/Borisov an interstellar comet and the second interstellar interloper discovered
    • C/1980 E1 (Bowell) – the most eccentric comet known in the Solar System with an eccentricity of 1.057… See more

    External links

    • "Oumuamua". NASA.gov.
    • Where is 'Oumuamua in the sky: The Sky Live
    • Talk about A/2017 U1 from 31 October 2017. SETI Institute at Facebook Live.… See more

    Wikipedia text under CC-BY-SA license
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    Table of Contents
    Overview
    Naming
    Quick Facts
    Observations
    Discussion
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    External links
     
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  2. NBC News
    https://www.nbcnews.com › mach › science › mysterious...

    Mysterious 'Oumuamua' space object has finally been identified

  3. TIME
    https://time.com

    Scientists Solve 'Alien Spacecraft' Oumuamua Comet Mystery - TIME

  4. NASA Solar System Exploration
    https://solarsystem.nasa.gov › asteroids-comets-and...

    In Depth | Oumuamua – NASA Solar System Exploration

  5. People also ask
    Why is it called 'Oumuamua?
    As the first interstellar visitor to have been identified, 'Oumuamua gives us insight into what other extrasolar planetary systems might be like. Why is it named 'Oumuamua? Its name is the Hawaiian word for "a messenger from afar arriving first" — very fitting for the first interstellar object to be discovered in our solar system.

    'Oumuamua: A guide to the 1st known interstellar visitor | Space

    space.com
    Who is Oumuamua?
    Gemini Observatory / AURA/NSF/Joy Pollard Astronomers have cataloged eight planets, 6,500 comets and more than 525,000 asteroids, but Oumuamua is one of a kind. The elongated space object, which was discovered speeding past the sun in 2017, is the only celestial body known to have visited our solar system from another.

    What is Oumuamua? Here's what we know about the interstellar object

    nbcnews.com
    Is 'Oumuamua' a real object?
    "It's the only such object discovered so far," Marco Micheli, an astronomer with the European Space Agency and the lead author of the new study, told NBC News MACH in an email. This artist's illustration shows 'Oumuamua racing toward the outskirts of our solar system, and is annotated with the locations of the planetary orbits.

    Mysterious 'Oumuamua' space object has finally been identified - NBC …

    nbcnews.com
    Is Oumuamua an alien spacecraft?
    FOLLOW NBC NEWS MACH ON TWITTER, FACEBOOK, AND INSTAGRAM. The space object Oumuamua is thought to be an exotic type of comet or asteroid, but some astronomers have speculated it could be an alien spacecraft.

    What is Oumuamua? Here's what we know about the interstellar object

    nbcnews.com
    Is Oumuamua an asteroid?
    Comets — icy, dusty objects that have been likened to "dirty snowballs" — typically form long tails when they come close to the sun. No such tail was visible in earlier observations of Oumuamua (which means "scout" in Hawaiian), a fact that helped lead other astronomers to conclude that it was an asteroid.

    Mysterious 'Oumuamua' space object has finally been identified - NBC …

    nbcnews.com
    How big is Oumuamua?
    The object, named ‘Oumuamua by its discoverers, is up to one-quarter mile (400 meters) long and highly-elongated—perhaps 10 times as long as it is wide. That aspect ratio is greater than that of any asteroid or comet observed in our solar system to date.

    In Depth | Oumuamua – NASA Solar System Exploration

    solarsystem.nasa.gov
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  6. NPR
    https://www.npr.org

    Interstellar object 'Oumuamua probably moved strangely due to …

  7. Science Mission Directorate
    https://science.nasa.gov › solar-syste…

    ‘Oumuamua - Science@NASA

    'Oumuamua is the first confirmed interstellar object to visit our solar system, discovered in 2017 by Pan-STARRS1. It is a highly elongated, reddish, and inert rocky object that will leave our system in 2019.

  8. Explore Amuah Mua

  9. NBC News
    https://www.nbcnews.com › mach › sci…

    What is Oumuamua? Here's what we know about the …

    Jan 28, 2019 · The name, which means “first scout from a distant place,” is pronounced “oh MOO ah MOO ah.” What does Oumuamua look like? Picture a cigar floating through space, and you’ve got the right idea....

  10. Space.com
    https://www.space.com › oumuamua.ht…

    'Oumuamua: A guide to the 1st known interstellar …

    Sep 19, 2023 · Learn about the mysterious object that was the first confirmed interstellar visitor to our solar system in 2017. Find out its size, shape, origin, trajectory and the theories...

  11. Science Mission Directorate
    https://science.nasa.gov › missions › h…

    Our Solar System’s First Known Interstellar Object Gets …

    Jun 27, 2018 · 'Oumuamua, the first known interstellar object to visit our solar system, got an extra push from comet-like jets of gas as it passed by the Sun in 2018. Learn how Hubble and other telescopes tracked its motion and shape, …

  12. Science Mission Directorate
    https://science.nasa.gov › solar-syste…

    10 Things: Mysterious ‘Oumuamua - Science@NASA

    Jul 2, 2018 · 'Oumuamua is the first confirmed interstellar object to pass through our solar system. Learn about its origin, speed, shape, rotation, outgassing, and more in this article from NASA Science.

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