Apr 17, 2026 · Space exploration, investigation, by means of crewed and uncrewed spacecraft, of the reaches of the universe beyond Earth’s atmosphere and the use of the information so gained to …

Feb 16, 2026 · Space exploration - Astronauts, Technology, Discoveries: Until the dawn of spaceflight, astronomers were limited in their ability to observe objects beyond the solar system to those portions …

Apr 17, 2026 · Space exploration - Astronomy, Technology, Discovery: In the decades following the first Sputnik and Explorer satellites, the ability to put their instruments into outer space gave scientists the …

Should we colonize space? Learn the pros and cons of the debate.

Apr 17, 2026 · Space exploration - Solar System, Probes, Missions: From the start of space activity, scientists recognized that spacecraft could gather scientifically valuable data about the various …

Apr 17, 2026 · Space exploration - Technology, Cost, Benefits: What do you think? Explore the ProCon debate Space exploration and development have been stimulated by a complex mixture of …

Through space exploration humans have learned a great deal about the planets, stars, and other objects in space. More than 5,000 spacecraft have been launched into space to gather information since …

The exploration of space is among the most fascinating ventures of modern times. It has carried first instruments, then people themselves, beyond Earth’s atmosphere, into a…

Apr 8, 2026 · Apollo 16 spent their mission exploring the lunar highlands. The three astronauts on Apollo 16 were John Young, Charles Duke, and Thomas Mattingly. Young and Duke each spent a total of …

This list provides answers to 12 questions about the history of space exploration.