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  2. Orbit of Mars - Wikipedia

    en.wikipedia.org/wiki/Orbit_of_Mars

    The minimum distance between Earth and Mars has been declining over the years, and in 2003 the minimum distance was 55.76 million km, nearer than any such encounter in almost 60,000 years (57,617 BC). The record minimum distance between Earth and Mars in 2729 will stand at 55.65 million km.

  3. Glenn Research Center - Wikipedia

    en.wikipedia.org/wiki/Glenn_Research_Center

    On March 1, 1999, the center was officially renamed the NASA John H. Glenn Research Center at Lewis Field, in honor of John Glenn, who was a fighter pilot, astronaut (the first American to orbit the Earth) and a politician. As early as 1951, researchers at the LFPL were studying the combustion processes in liquid rocket engines. [1]

  4. Astronaut training - Wikipedia

    en.wikipedia.org/wiki/Astronaut_training

    The selection and training of astronauts are integrated processes to ensure the crew members are qualified for space missions. [6] The training is categorized into five objectives to train the astronauts on the general and specific aspects: basic training, advanced training, mission-specific training, onboard training, and proficiency maintenance training. [7]

  5. Mars Exploration Program - Wikipedia

    en.wikipedia.org/wiki/Mars_Exploration_Program

    For example, NASA's Curiosity rover (landed on Mars in Aug 2012) has a budget exceeding $2.5 billion. [5] NASA also has goals of collaborating with the European Space Agency (ESA) in order to conduct a mission involving returning a sample of Mars soil to Earth, which would likely cost at least $5 billion and take ten years to complete. [6]

  6. Exploration of Mars - Wikipedia

    en.wikipedia.org/wiki/Exploration_of_Mars

    The samples would be returned to Earth by July 2031. [137] NASA-ESA Mars Sample Return is a three-launch architecture concept for a sample return mission, which uses a rover to cache small samples, a Mars ascent stage to send it into orbit, and an orbiter to rendezvous with it above Mars and take it to Earth. [138]

  7. NASA-ESA Mars Sample Return - Wikipedia

    en.wikipedia.org/wiki/NASA-ESA_Mars_Sample_Return

    The NASA–ESA potential mission schedule anticipated launches from Earth in 2018, 2022 and 2024 to send respectively a sample caching rover, a sample return orbiter and a sample retrieval lander for a 2027 Earth arrival, with MAV development starting in 2014 after two years of technology development identified by the MAV design studies. [44]

  8. Can You Do a Pushup? This Is How Many You Should Be Able to ...

    www.aol.com/pushup-many-able-perform-depending...

    The number of pushups you can do can be a good indicator of your muscular strength and endurance, according to a list of guidelines issued by the Mayo Clinic. If you can hit these targets, the ...

  9. Sky crane (landing system) - Wikipedia

    en.wikipedia.org/wiki/Sky_crane_(landing_system)

    This system is also much more precise: while the Mars Exploration Rovers could have landed anywhere within their respective 93-mile by 12-mile (150 by 20 kilometer) landing ellipses, Mars Science Laboratory landed within a 12-mile (20-kilometer) ellipse. [7] Mars 2020 has even more precise system, and landing ellipse of 7.7 by 6.6 km. [8]