Supriya Chakraberti [Professor of Physics and director of the Center for Space Science and Technology, University of Massachusetts, Lowell]
20 September 2021
Since the Soviet Union launched Sputnik—the first human-made satellite—in 1957, humanity has steadily been putting more and more objects into orbit every year. Over the second half of the 20th century, there was a slow and steady growth, with roughly 60 to 100 satellites launched yearly until the 2010s.
But since then the pace has been increasing dramatically.
As of September 16 [2021], roughly 1,400 new satellites have already begun circling the Earth, and that will only increase as the year goes on.
The majority of satellites are used for observing Earth and for communications and internet.
. . .
With the huge growth in satellites, fears of a crowded sky are starting to come true. A day after SpaceX launched its first 60 Starlink satellites [this week], astronomers began to see them blocking out the stars.
. . .
As low-Earth orbit gets crowded, concern about space debris increases, as does a real possibility of collisions.
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Time-Being (Own-Being)
Mokurai
(2021)
thoroughly thorough …
(t)here … and k(now)n all at once
(again) … this with that
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” … ‘Planet Polluto’ …”. Photo: M. Cynog-Evans.
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I truthfully believe that the book of philosophy is the one which is permanently open before our eyes; but because it is written in different characters from those of our alphabet it cannot be read by everyone: and the characters of this book are triangles, squares, circles, spheres, cones, pyramids and other mathematical figures which are highly suited for just such a reading.
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