Daily Archive: August 6, 2020
Laser ranging only gives you a location window that’s up to several thousand kilometers in distance. For better predictions, debris trackers can also measure the reflection of sunlight off these objects, which can be used to narrow those windows to just a few meters. But these sunlight reflections can only be observed around dawn or twilight, when the ground stations are still dark but the satellites themselves are illuminated.
A team of European researchers think they’ve finally gotten around this problem, according to a new paper published in Nature Communications. A team led by Michael Steindorfer, a space debris
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Facebook took down a video President Trump posted to his account Wednesday, citing its rules against false claims about the coronavirus. The decision to remove the video signals a new direction for Facebook, which has been taking incremental steps recently to distance itself from the perception that the company deliberately turns a blind eye to the president’s potentially harmful behavior.
The video in question was a clip from a Fox News segment from Wednesday morning in which the president makes the unsubstantiated claim that children are “almost immune” to COVID-19. While much remains unknown about the novel coronavirus, children can
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