LibraryMissions & TelescopesOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaMission or telescope

Its 1957 launch made this Soviet craft the first artificial Earth satellite.

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Your new ahaSputnik 1

Sputnik 1 was the first artificial satellite placed in Earth orbit. Source: Sputnik 1

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More from Missions & Telescopes

A few more worth knowing.

  1. 20This NASA telescope discovered thousands of exoplanets by measuring small dips in starlight.IDENTIFY
    Kepler Space Telescope

    Kepler discovered thousands of exoplanets by detecting the tiny dips in starlight as planets passed in front of their stars.

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  2. 21This X-ray observatory is named after astrophysicist Subrahmanyan Chandrasekhar.IDENTIFY
    Chandra X-ray Observatory

    Chandra observes the universe in X-ray light and is named for astrophysicist Subrahmanyan Chandrasekhar.

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  3. 22This SpaceX rocket has a first stage designed to land and fly again.RECALL
    Falcon 9

    Falcon 9 became the first orbital-class rocket capable of reflight, with a first stage that lands itself.

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