72,852 Posts

albirea1 @Regrann from @travellingthroughspace: I just reached 1300 followers, thanks guys ;) 🏼🏼 Here's an amazing photo of Space Shuttle Atlantis in orbit. 🌎🌍 #spaceshuttle #orbit #spaceshuttleatlantis # #space #spacetravel #nasa #beautiful #amazing #astronaut #1300 #iss #internationalspacestation - via #Regrann 5h

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albirea1 @Regrann from @astrophysics_: How do we know that the Milky Way is 100,000-120,000 light years in diameter? The answer is quite simple. Simply measure the distance to cepheid variable stars, which are kind of cosmic yard stick. Cepheid stars luminosity can change in an easily predictable way, which makes them perfect for measuring cosmic distances. By knowing the exact brightness of these stars astronomers can determine their distance. By measuring the distances to these stars astronomers can deduce the approximate size of the Milky Way.
Check out my Facebook page as well, there's a link to it in my bio.
Image credit: Aaron J. Groen
#astronomy #astronomer #space #cosmos #cosmology #interstellar #outerspace #universe #multiverse #galaxy #stars #planets #nebula #supernova #spaceshuttle #spacetravel #stargazing #starstuff #Nasa #Hubble #telescope #science #physics #constellation #instacool #instalike #instafollow - via #Regrann
6h

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hatties77 California science center fun today, got to scope out some jets and see how everything scientific operates #nerdalert #wasawesome #thedorkcomesout #spaceshuttle #endeavour #jetpower #coolstuff 7h

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undead_may_ Sitting here playing #pinball on the #wii! Lol nobody can beat my high score: 33,890,789!!
#highscore #halloffame #thewilliamscollection #spaceshuttle #awesome #whoopwhoop
8h

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martsmartsworld To some they call a flying brick. Space shuttle Enterprise. What a beauty. #spaceshuttle #enterprise #nasa #spaceflight #dreambig 8h

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cakesbyalisa Sneak peek creating the graduating astronaut and the space shuttle out of gumpaste. Then I will be working on some planets when these are done. Can't wait!! #cakes#cake#gumpaste#gumpastecharacter#astronaut#astronautcakes#astronautcaketopper#astronautcake#spacecake#spaceshuttle#fondantart#fondant#graduation#graduate 9h

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robercik91 Czy ja dobrze wsiadlem? To #PKP? A nie TGV? Zaskoczony ;-) trip to #krakow 9h

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lezworld2012 Dr. Sally Ride was born on May 26, 1951, and to commemorate her legacy, Google posted doodles inspired by her life on its homepage today. Born in Los Angeles and trained as a physicist at Stanford, she was the first American woman in space. Ride was extremely private about her life, so it wasn't until after her death that it was revealed that she was a lesbian and had been in a 27 year relationship with a psychology professor, Tam O'Shaughnessy. Rider and O'Shaughnessy were childhood friends and lived together in San Diego. This would be a movie I would totally be interested in seeing. #sallyride #girlpower #spaceshuttle #nasa #girlwonder #googledoodle #google #loveislove #lezworld2012 10h

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yvonneconeliano Saw the Space Shuttle Endeavour today, so cool!! #spaceshuttle 10h

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astrophysics_ How do we know that the Milky Way is 100,000-120,000 light years in diameter? The answer is quite simple. Simply measure the distance to cepheid variable stars, which are kind of cosmic yard stick. Cepheid stars luminosity can change in an easily predictable way, which makes them perfect for measuring cosmic distances. By knowing the exact brightness of these stars astronomers can determine their distance. By measuring the distances to these stars astronomers can deduce the approximate size of the Milky Way.
Check out my Facebook page as well, there's a link to it in my bio.
Image credit: Aaron J. Groen
#astronomy #astronomer #space #cosmos #cosmology #interstellar #outerspace #universe #multiverse #galaxy #stars #planets #nebula #supernova #spaceshuttle #spacetravel #stargazing #starstuff #Nasa #Hubble #telescope #science #physics #constellation #instacool #instalike #instafollow
11h

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trevorblassingame72 It's not the coolest car or the best car in the world, but I sure do love it!!! #SpaceShuttle #OklahomaSkies #Bae 11h

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imayastyles I will never ever try this again #lateupload #spaceshuttle #EnchantedKingdom 11h

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dertbook Sally Ride — American physicist and astronaut. Born in Los Angeles, Ride joined NASA in 1978 and became the first American woman in space in 1983. Born on this day in 1951. #sallyride #nasa #space #spaceshuttle #girlpower #women #woman #inspirationalquote #science #quoteoftheday #dertbook #DERT 12h

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