Where Does Space Actually Start?

Where does the atmosphere end and space begin? The answer’s not so simple.

This Is Not What Space Looks Like –
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Harvard Researchers Are Preparing to Geoengineer the Atmosphere
“A team of Harvard researchers is preparing a first-of-its-kind field experiment in the hotly-debated area of solar geoengineering, the controversial idea to combat climate change by pumping aerosols into the sky to reflect the sun’s rays back into space.”

Here’s How Human Activity Affects Space Weather Around Planet Earth
“While we know that human activity is affecting Earth’s climate, can the influence of our actions also reach beyond our planet? The answer is yes, according to a new wide-ranging research paper that looks at the history of ‘human-induced space weather.'”

Spacewatch: Where Does Space Begin?
“How high must we climb before we can claim to be ‘in space’? To answer ‘above the atmosphere’ will not suffice, for although the Earth’s atmosphere grows progressively thin with altitude, traces of it extend beyond 800km and slowly merge with the swarms of particles trapped within our planet’s magnetic field or billowing outwards from the Sun in the solar wind.”


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This episode of Seeker was written and hosted by Trace Dominguez.



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