questions about the observation of the planet Earth from space, usually for scientific, technical, or other well-defined reasons, or about the spacecraft that do this. This tag is usually used for systematic observations, but it could also apply to a questions on specific images or photos observing something unusual requiring analysis.
Questions tagged [earth-observation]
122 questions
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What is the highest frequency at which Earth is, or has been, observed from space?
Earth observation from space occurs throughout the electromagnetic spectrum. With my meteorological bias, I until recently believed it wasn't at frequencies higher than UV, but the X-Ray detector AXIS proves me wrong. What is the highest frequency…
gerrit
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12
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Which high-resolution Earth-facing satellites transmit data to the public in realtime?
Some NASA satellites such as LASCO transmit images which are viewable by the public in real time. Are there any high-resolution Earth-facing satellites that also are viewable by the public in real time? Either government-funded or private satellites…
dotancohen
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7
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1 answer
Could spy satellites be blinded? For example by search lights?
Assume that Doctor Evil insists on dancing outdoors although he has been forbidden by the UN to do so. And that spy satellites can observe this against Doctor Evil's volition.
Could Doctor Evil keep on dancing outdoors invisibly if he dances right…
LocalFluff
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5
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Study "earthquake" lights from satellite videos
A recent youtube video, "Unexplained Earthquake Light Phenomenon Finally Captured on Camera", by Anton Petrov (who I have a lot of respect for as a science reporter) shows numerous videos of lights in the sky proceeding, during, and after…
tckosvic
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Which spacecraft can see plants "glow" during photosynthesis during the day, and what wavelength does it use?
This comment reminded me that I once read something about an Earth observation satellite that has a sophisticated optical system (possibly a camera) that it tuned to a very narrow range of wavelengths where the Sun's spectrum is particularly dark…
uhoh
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How will EarthNow LLC obtain its real-time video of Earth?
The New York Times article Asteroids and Adversaries: Challenging What NASA Knows About Space Rocks led me to read further about Nathan P. Myhrvold which led me to the interesting This American Life podcast When Patents Attack!:
Why would a company…
uhoh
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