Planets beyond the solar system are known as exoplanets. Because of the crimson color of Mars’ atmosphere and surface, it is frequently referred to as the Red Planet. When the definition of a planet was revised to only include bigger celestial entities in 2006, Pluto lost its status as a ...
The Soviet Union's Sputnik 1 satellite took to the skies on Oct. 4, 1957, launching the space age and the Cold War space race. Here are a few fun facts you may not know about Sputnik 1 and its brief but world-changing mission.
Planets beyond the solar system are known as exoplanets. Because of the crimson color of Mars’ atmosphere and surface, it is frequently referred to as the Red Planet. When the definition of a planet was revised to only include bigger celestial entities in 2006, Pluto lost its status as a ...