Why do Observatories shoot lasers at the Sky?

Ramani Aswath

Ramani Aswath

@ramani-VR4O43 • Oct 24, 2024
The Hubble telescope out in space is unhindered by atmospheric disturbances. The Nursery Rhyme: 'Twinkle, Twinkle Little Star' does not apply in space. Little or big stars do not twinkle. Engineeers on earth are not going to sit and twiddle thumbs to match the twinkling. Being CEans they shoot a laser beam into the sky, create an artificial star outside the atmosphere, analyse the twinkling of this star and compensate the twinkle of the other stars.
Truly amazing application of technology matching any Star Trek activity.

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  • Nayan Goenka

    Nayan Goenka

    @nayan-Dhpt4N • Aug 11, 2013

    It means that twinkle twinkle is actually a joke? It is some artificial crazy lab experiment that is fooling the kids all around the globe? That sounds cruel.
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  • oprime

    oprime

    @oprime-Myffqx • Aug 12, 2013

    Nayan Goenka
    It means that twinkle twinkle is actually a joke? It is some artificial crazy lab experiment that is fooling the kids all around the globe? That sounds cruel.
    Twinkling of stars is an optical phenomenon and happens due to the earth's atmosphere. All of us have read about it in any high school physics book.

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  • Jeffrey Arulraj

    Jeffrey Arulraj

    @jeffrey-xA7lUP • Aug 13, 2013

    Using a twinkle of a star and a laser twinkle to understand the distortion is far from comprehensing

    Man all the error matching tech and easy removal of noise Is super cool to see how they are practically used
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