Happy #EarthDay! This photo was taken by the Apollo 17 astronauts while en route to the Moon on December 7, 1972. This first view of the whole Earth from space has become one of the most iconic and widely distributed images in existence. It has been used by environmental activists, politicians, and scientists to illustrate the fragility of our home planet and the need to protect it and the...
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Happy EarthDay This photo was taken by the Apollo 17 astronauts while
Howard Hughes spent three years and nearly four million dollars creating his aviation classic "Hell's Angels". Production included a recast lead and a plane crash by Hughes. Read about the making of one of the first blockbuster actions films on our website: [ S.si.edu Link ]

Join us tomorrow night for a screening of the film at the Museum in Washington, DC, and the Udvar-Hazy Center in...
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Howard Hughes spent three years and nearly four million dollars creating his
Did you know that Jupiter is wider than 11 Earths side by side and has more mass than all the other seven planets combined? Learn more about this giant among giants in our latest blog post: [ S.si.edu Link ]

Or tune in live for our lecture "Juno: Mission to Jupiter" tonight at 8:00 pm (ET) - [ S.si.edu Link ]
Did you know that Jupiter is wider than 11 Earths side by

A Visit to the Giant Among Giants

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Mike Richardson
Antoinette Cumming
Leave your questions as a comment, and we'll answer as many as we can!
Celebrate Earth Day early today with two live online programs. On the National Air and Space Museum, Smithsonian Institution Facebook page and on Air and Space Live: airandspace.si.edu/live
Celebrate Earth Day early today with two live online programs On the
Mike Richardson
Five years ago today, we welcomed Space Shuttle Discovery to the Smithsonian. The first orbiter retired from NASA’s shuttle fleet, Discovery completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,211,675 miles.

Image Caption: Space Shuttles Enterprise, left, and Discovery, right, are pictured here meeting nose-to-nose at the beginning of a transfer...
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Five years ago today we welcomed Space Shuttle Discovery to the Smithsonian
Missy Sheldrake
Kevin Dwyer
Ian Schue
75 Years Ago Today: Legendary pilot Jimmy Doolittle led sixteen B-25 bombers on the first American aerial assault against the Japanese mainland during World War II– known as the Doolittle Raid. For this high-risk mission, Doolittle received the Medal of Honor.

Learn more about Jimmy Doolittle: [ Bit.ly Link ]
75 Years Ago Today Legendary pilot Jimmy Doolittle led sixteen B25 bombers
Robert Connell
Brian Thorstad
Antoinette Cumming
Live webcast tomorrow at 1 pm ET. Kathy Sullivan, a former astronaut and recent administrator of the National Oceanic and Atmospheric Administration (NOAA), will share her perspective on visual observations of our changing planet, the importance of satellite technologies in looking at Earth through multiple lenses, and how all that data can be combined and shared on a global scale.
Live webcast tomorrow at 1 pm ET Kathy Sullivan a former astronaut

Celebrating Earth Day with Kathy Sullivan

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Tomorrow at 12:30, join us for this week's Ask an Expert on Facebook Live about the first Earth Day in 1970. Tune in on the National Air and Space Museum, Smithsonian Institution Facebook page.
Tomorrow at 1230 join us for this weeks Ask an Expert on

Ask an Expert on Facebook Live: The First “Earth Day”

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Today in 1964: Jerrie Mock became the first woman to pilot an aircraft around the world. She departed from Columbus, Ohio, on March 19, 1964 in the Cessna 180 "Spirit of Columbus" and arrived back home after flying 36,964 kilometers (23,103 miles) in 29 days, 11 hours, and 59 minutes. See her aircraft on display at our Udvar-Hazy Center: [ Bit.ly Link ]
Today in 1964 Jerrie Mock became the first woman to pilot an
Mike Richardson
This Thursday, watch our live webcast as Scott Bolton, principal investigator for the Juno mission to Jupiter, talks about the orbiter’s quest to unlock Jupiter's secrets and understand the origin and evolution of the gigantic planet.
This Thursday watch our live webcast as Scott Bolton principal investigator for

Live Webcast - Juno: Mission to Jupiter

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Did you #spottheshuttle? Five years ago today, Space Shuttle Discovery atop NASA's Shuttle Carrier Aircraft (SCA) flew over the National Mall in Washington, DC and then made several low passes over our Udvar-Hazy Center before landing at Washington Dulles International Airport.
Did you spottheshuttle Five years ago today Space Shuttle Discovery atop NASAs
Sheryl Hopkins
John A. Tirpak
Millie Perdue
45 Year Ago Today: Apollo 16 launched carrying astronauts John Young, Ken Mattingly, and Charlie Duke to the Moon. Apollo 16 was the fifth mission to land people on the Moon and return them to Earth. It was also the second flight of the Lunar Roving Vehicle. Learn more about the mission: [ Bit.ly Link ]

Image Credit: NASA
45 Year Ago Today Apollo 16 launched carrying astronauts John Young Ken
Robert Basuel
Rick Hudson
5 Years Ago Today: Space Shuttle Discovery was mated to the top of NASA's Shuttle Carrier Aircraft (SCA) in the mate-demate device at NASA's Kennedy Space Center in Florida. The SCA flew Discovery to Washington Dulles International Airport on April 17. Two days later, the orbiter was transferred to the Smithsonian and placed on display at our Udvar-Hazy Center.

Image Credit: NASA
5 Years Ago Today Space Shuttle Discovery was mated to the top
Michael Mettman
Rolf Hawkins
Meredith Garland
Today in 1452: Leonardo da Vinci was born. This full-size model of one of Leonardo’s ornithopter flying machine designs is based on a drawing in da Vinci Manuscript B, folio 74, Institut de France, Paris. Leonardo likely never actually constructed any of his flying machine designs.
Today in 1452 Leonardo da Vinci was born This fullsize model of
Debbie Hegybeli Weinkamer
Ronald Connors
Steve McLaughlin
Today in 1970: "Houston, we've had a problem." Two days into their journey to the Moon, the astronauts aboard Apollo 13 were asked to perform a routine stir of the oxygen tanks. Moments later, an explosion rocked the spacecraft. It was not until April 17, when this image was taken, that the astronauts could see the full extent of the damage to the service module. Learn more by reading the...
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Today in 1970 Houston weve had a problem Two days into their
Ron Bowie II
We’re live for Ask an Expert talking about STS-1, the first space shuttle mission. Note: due to some technical difficulties the video is sideways for the first few minutes. The video orientation is fixed at approximately the 3 minute mark.
Gregory Stern
Rafael Figueroa Mendez
Today in 1981: Space Shuttle Columbia launched on STS-1, the first orbital flight of the Shuttle program. This star tracker flew on Columbia's maiden voyage and 15 subsequent flights. Space Shuttles used onboard star trackers to locate their position in space with high accuracy. Once the shuttle reached orbit, the tracker automatically locked onto a star to orient the spacecraft: [ Bit.ly Link ]
Today in 1981 Space Shuttle Columbia launched on STS1 the first orbital
Curtis Tammany
NASA and the U.S. Naval School of Aviation Medicine turned to the Deaf community in the 1950s to better understand the effects of space travel on the human body. A core group of 11 deaf men, known as the “Gallaudet Eleven,” participated in weightlessness, balance, and motion sickness experiments.
The men could endure motion and gravitational forces that would make most of us sick. Over a ten...
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NASA and the US Naval School of Aviation Medicine turned to the

How Being Deaf Made the Difference in Space Research

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Rolf Hawkins
Melissa Courtney Strand
NOW! What do you want to know about the eight artists who served in the American Expeditionary Forces during #WorldWar1? We're taking your questions here and on Twitter.

The Prisoner by Harvey Thomas Dunn, Oil on canvas, 1918 Copyright/Owner: National Museum of American History, Smithsonian Institution
NOW What do you want to know about the eight artists who