n-a-s-a: This stamp featuring the Soyuz, Mercury, and Gemini spacecraft was one of four Space stamps issued in 1992.

n-a-s-a: This stamp featuring the Soyuz, Mercury, and Gemini spacecraft was one of four Space stamps issued in 1992.

Nasahistory: A Beautiful Picture Of A Windsock.

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Humanoidhistory: Today In History: On May 1, 1979, The Prototype Space Shuttle Enterprise Rolls Out From The Vehicle Assembly Building To The Launch Pad Cape Canaveral In Florida.

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Spaceexplorationphotography: Infographic About Planet 9, The Required Planet To Explain The Trajectory Of Six Of The Most Distand Known Kuiper Belt Objects.source: Http://Imgur.com/S5Faizx

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Malinchristersson: The Difference Between An Easy Model And A Complicated One. Heliocentrism And Geocentrism

Physicists Just Found A Link Between Dark Energy And The Arrow Of Time

Startswithabang: The Strongest Gravitational Show In The Universe “The Curvature Of Space Forces Some Light Paths To Take Longer To Arrive Than Others, Meaning We’re Seeing The Same Background Object At Different Times. Most Spectacularly, We’ve

Spaceexp: Mars In 2016 Via Reddit

Looking-At-The-Universe: Apparent Retrograde Motion Of Mars

Startswithabang: Why Does E = Mc^2?“Throw In Any Other Constant In There And The Equations Don’t Balance, And You Gain-Or-Lose Energy Each Time You Absorb-Or-Emit A Photon. Once We Finally Discovered Antimatter In The 1930S, We Saw Firsthand The

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