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NASA History Office

Not a fan of summer heat? Cool off by checking out our Wind Tunnels @Flickr albums:…
#HappyBirthday to astronaut Gary Payton, who spent 73 hours in space on board STS-51C Discovery in 1985. Now teaching @AF_Academy
#HappyBirthday to astronaut Ulf Merbold, who became the first @esa astronaut in space aboard STS-9 Columbia in 1983:…
#Remembering Ilan Ramon, first Israeli astronaut and STS-107 Columbia crewmember, born #OTD in 1954:
#HappyBirthday to USMC Colonel (ret.) and astronaut Jim Buchli, who orbited the Earth 319 times during the course of 4 spaceflights!
#NOW (1:58 pm ET) in 2002, STS-111 Endeavour landed after servicing @Space_Station and swapping crews:…
#OTD 1976 Viking 1 entered Martian orbit after 10 months in space. It became the first craft to land and operate on the surface of Mars.
A look at the watches used by Apollo astronauts for #NationalWatchDay
#OTD in 1963 Valentina Tereshkova returned safely to Earth after becoming the 1st woman in space aboard Vostok 6.
Registration closes tonight at 11:59 pm ET! Celebrate 100 yrs of @NASA_Langley with us & apply now: #NASALangley100
#OTD in 2009, Atlas V launched the Lunar Crater Observation and Sensing Satellite (LCROSS) to seek out water ice at the Moon's south pole.
#OTD 1928 Amelia Earhart became 1st woman to fly as passenger across the Atlantic. She would fly across solo two years later.
Sally Ride became the 1st American woman in space when she launched aboard STS-7 Challenger #NOW in 1983.
Environmental Health Specialist Jamie Keeley measures radiation levels around @CassiniSaturn's nuclear power source #OTD in 1997.
#OTD 1993 President Clinton announces support for a redesigned space station to reduce costs. Shown is a 1991 artist's conception:
#OTD 2000, a 15g meteorite was found in Dhofar, Oman. 2 years later, it was determined to be from Mars. Only 0.1% of meteorites are Martian.
#OTD 1985 the STS-51G (Discovery) launched 3 comsats and 7 astronauts, including the 1st royalty in space: Sultan Salman Abdulaziz Al-Saud
.@NASAKennedy celebrates Launch Pad 39B's 50th anniversary. Learn more about its history:
The M2-F2 heavyweight lifting body arrives by truck #OTD in 1965 at @NASAArmstrong.
#OTD in 1963 cosmonaut Valentina Tereshkova was launched on board Vostok 6, becoming the first woman in space.
#HappyBirthday to astronaut Jeff Ashby, who piloted STS-93 Columbia and STS-100 Endeavour, commanded STS-112 Atlantis!
#HappyBirthday to Taylor Wang, payload specialist aboard STS-51B Challenger and former @NASAJPL physicist.
#OTD 1971 the Titan IIID launched for the 1st time. NASA used a version of the Titan II to launch Gemini missions. Both were highly reliable
#OTD in 1988, @esa's Meteosat-3, the third of seven 1st-generation European weather satellites, launched from French Guiana.
The 1970 solar eclipse, space art, and 11 deaf pioneers: read about all this and more in our latest newsletter:
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