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  2. List of satellite map images with missing or unclear data

    en.wikipedia.org/wiki/List_of_satellite_map...

    This is a list of satellite map images with missing or unclear data. Some locations on free, publicly viewable satellite map services have such issues due to having been intentionally digitally obscured or blurred for various reasons of this. [ 1] For example, Westchester County, New York asked Google to blur potential terrorism targets (such ...

  3. Health threat from cosmic rays - Wikipedia

    en.wikipedia.org/wiki/Health_threat_from_cosmic_rays

    Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...

  4. Timeline of the far future - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_far_future

    Mars reaches the same solar radiation flux as Earth today, after which it will suffer a similar fate to the Earth as described above. [92] 6.6 billion The Sun may experience a helium flash, resulting in its core becoming as bright as the combined luminosity of all the stars in the Milky Way galaxy. [113] 7.5 billion

  5. Third-party evidence for Apollo Moon landings - Wikipedia

    en.wikipedia.org/wiki/Third-party_evidence_for...

    The camera (near Conrad's right hand) is on display at the National Air and Space Museum. Third-party evidence for Apollo Moon landings is evidence, or analysis of evidence, about the Moon landings that does not come from either NASA or the U.S. government (the first party), or the Apollo Moon landing hoax theorists (the second party).

  6. 2 astronauts have been stuck in space for months. How they ...

    www.aol.com/news/why-nasa-taking-long-boeings...

    If you look at both, unfortunately, Challenger and Columbia, you can see cases where people had the right data or a valid position to put forward, but the environment just didn't allow it," Russ ...

  7. Habitability of natural satellites - Wikipedia

    en.wikipedia.org/wiki/Habitability_of_natural...

    v. t. e. The habitability of natural satellites is the potential of moons to provide habitats for life, though it is not an indicator that they harbor it. Natural satellites are expected to outnumber planets by a large margin and the study of their habitability is therefore important to astrobiology and the search for extraterrestrial life.

  8. Global catastrophic risk - Wikipedia

    en.wikipedia.org/wiki/Global_catastrophic_risk

    Technology scouting. v. t. e. A global catastrophic risk or a doomsday scenario is a hypothetical event that could damage human well-being on a global scale, [ 2] even endangering or destroying modern civilization. [ 3] An event that could cause human extinction or permanently and drastically curtail humanity's existence or potential is known ...

  9. Astronomical seeing - Wikipedia

    en.wikipedia.org/wiki/Astronomical_seeing

    The vertical scale of the wavefronts plotted is highly exaggerated. In astronomy, seeing is the degradation of the image of an astronomical object due to turbulence in the atmosphere of Earth that may become visible as blurring, twinkling or variable distortion. The origin of this effect is rapidly changing variations of the optical refractive ...