Imaginea Astronomica a Zilei

Descopera cosmosul! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

March 28, 1998
See Explanation.  Clicking on the picture will download 
 the highest resolution version available.

Von Braun's Wheel
Credit: Courtesy NASA/MSFC Historical Arhivas

Explicatie: (Edit) Orbiting 1,075 miles above the Earth, a 250 foot wide, inflated, reinforced nylon "wheel" was conceived in the early 1950s to function as a navigational aid, meteorological station, military platform, and way station for space exploration by rocket pioneer Wernher von Braun. The wheel-shaped station could be easily rotated creating artificial gravity so that the astronauts would not suffer the effects of prolonged weightlessness. Von Braun and his team favored building a permanently occupied Earth orbiting space station from which to stage a lunar exploration program. But in the 1960s NASA adopted the Apollo Program, which called for astronauts to transfer to a landing vehicle after achieving lunar orbit, bypassing the construction of von Braun's wheel.

Imaginea de maine: A Bright Young Open Cluster

< Arhiva | Index | Cauta | Calendar | Glosar | Educatie | Despre APOD >

Autori & editori: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
Reprezentanti tehnici NASA: Jay Norris. Specific rights apply.
Un serviciu al: LHEA at NASA/ GSFC
&: Michigan Tech. U.