Alan Stern

@AlanStern

Scientist. Space Explorer. Author. Speaker. Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed too!

Niwot, CO
Vrijeme pridruživanja: srpanj 2008.

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    vera o non vera? (Propendo per il no, ma sono un profano)

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  2. prije 2 sata

    A hauntingly cool and stirring Earthrise photo from Apollo 14, almost 50 years ago! Have a look!

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    Solar Orbiter will crab walk through space in order to keep its heat shield pointed straight at the Sun — and the rest of its instruments safe in the the heat shield's shadow. 🦀 Learn more about the tech enabling this journey to our star:

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    Astronauts need to be ready for anything – even in the unlikely event their spacecraft lands 400 km away from their target. Sea, winter and survival – astronaut explains all in the third of our Fit for Space series:

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    Clyde Tombaugh on his birthday! Born near Streator Illinois in 1906,Tombaugh discovered Pluto in 1930. Check out this video about his life and his discovery:

    Clyde Tombaugh with homemade telescope
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    prije 24 sata

    Cool... Some of these look like stuff out of sci-fi movies (both good and bad ones).

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    Today in 1906, astronomer Clyde Tombaugh was born, seen here with a homemade telescope. He is most well known for discovering Pluto in 1930.

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    prije 2 sata

    Bright fireball spotted over UK on February 3, 2020. Video captured from Northern England

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  9. prije 3 sata

    That’s retiring Director France Cordova accepting the thanks and recognition of the yesterday in DC at the National Scince Board meeting. Thank you France for your amazing service to the NSF.

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    4. velj

    First up today is our weekly mission operations look back/look ahead meeting, run by mission operations manager Go New Horizons!

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    prije 17 sati

    A great video from one of our Lucy Ambassadors, David Dezell Turner. What talent! He (unknowingly) combined some of my favorite things , Star Wars, & Le Petit Prince.

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    prije 16 sati

    Today I got to have some old-school physics fun, tracing uncertainty through the calculations we'll use to measure polarization of light with PUNCH. Sometimes being a PI is all about shredding through some gnarly algebra.

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    prije 14 sati

    3 February 1966 Soviet spacecraft made the 1st controlled soft landing on the It was (and is) a complex and considerable technological triumph READ The Forgotten Moon Landing here:

    , , i još njih 7
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    Odgovor korisniku/ci

    What he did was impressive. Pluto only appeared as a faint star, but he saw it move very slowly across the sky with his telescope, meticlously watched it for years, and released it was a planet.

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    4. velj
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    4. velj
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    4. velj

    Há 114 anos, nesse mesmo dia, em Streator, Illinois nascia Clyde Tombaugh, há 90 anos, nesse mesmo mês, com 24 anos, ele descobriu Plutão, a porta de entrada para a terceira zona do Sistema Solar. by

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  18. 4. velj

    First up today is our weekly mission operations look back/look ahead meeting, run by mission operations manager Go New Horizons!

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  19. 4. velj

    114 years ago today Clyde Tombaugh was born in Streator, . 90 years ago this month, at age 24, he discovered and in doing so, our solar system's third zone. Happy birthday Clyde!

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    3. velj

    The XB-70A, capable of flying three times the speed of sound, was the world's largest experimental aircraft in the 1960s. Two XB-70A aircraft were built. 📷NASA.

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