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  2. Exosphere - Wikipedia

    en.wikipedia.org/wiki/Exosphere

    Hydrogen is present throughout the exosphere, with some helium, carbon dioxide, and atomic oxygen near its base. Because it can be hard to define the boundary between the exosphere and outer space, the exosphere may be considered a part of the interplanetary medium or outer space. Earth's exosphere produces Earth's geocorona.

  3. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The exosphere is the outermost layer of Earth's atmosphere (though it is so tenuous that some scientists consider it to be part of interplanetary space rather than part of the atmosphere). It extends from the thermopause (also known as the "exobase") at the top of the thermosphere to a poorly defined boundary with the solar wind and ...

  4. Timeline of space exploration - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_space_exploration

    First rocket to pass the thermopause and enter the exosphere. At 682 miles (1,098 km) altitude and 3,335 miles range, the 3-stage Jupiter-C breaks both records and achieves MACH 18 velocity. At 682 miles (1,098 km) altitude and 3,335 miles range, the 3-stage Jupiter-C breaks both records and achieves MACH 18 velocity.

  5. 30 Unusual Facts No One Really Asked For, But Are Pretty Cool ...

    www.aol.com/46-unusual-facts-no-one-060027758.html

    As absurd as it can sound on paper, the truth is that facts are just fun, the more obscure, weird and random, the better. After all, everyone needs a handful of interesting trivia to pull out at ...

  6. 20 Cool Facts About Space We Bet You Didn’t Know

    www.aol.com/20-cool-facts-space-bet-210041339.html

    The post 20 Cool Facts About Space We Bet You Didn’t Know appeared first on Reader's Digest. Who knows, one day you might be able to actually visit! The post 20 Cool Facts About Space We Bet You ...

  7. 30 Strange But Interesting Facts To Satisfy Your Never ... - AOL

    www.aol.com/70-undiscovered-facts-might-not...

    Image credits: undiscoveredfacts Brazil's interesting law to reduce sentences for inmates for every book they read has some rules.The book limit for a year is 12 books, and only certain books ...

  8. Thermopause - Wikipedia

    en.wikipedia.org/wiki/Thermopause

    As a lower boundary for the exosphere this boundary is also called the exobase. [ 1 ] The exact altitude varies by the energy inputs of location, time of day, solar flux, season, etc. and can be between 500 and 1,000 kilometres (310 and 620 mi) high at a given place and time because of these.

  9. Atmosphere - Wikipedia

    en.wikipedia.org/wiki/Atmosphere

    The thermosphere extends from an altitude of 85 km to the base of the exosphere at 690 km and contains the ionosphere, where solar radiation ionizes the atmosphere. The density of the ionosphere is greater at short distances from the planetary surface in the daytime and decreases as the ionosphere rises at night-time, thereby allowing a greater ...