Standard Digital
СюжетПовреждение нефтепровода «Дружба»
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Last year, the Marine Conservation Society said mackerel was "under immense pressure from fishing activities across multiple nations" and that the stocks would soon be unable to replenish naturally.
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One reason for routinely launching GPS satellites is simply "constellation replenishment," said Col. Andrew Menschner, deputy commander of the Space Force's Space Systems Command. Old satellites degrade and die, and new ones need to go up and replace them. At least 24 GPS satellites are needed for global coverage, and having additional satellites in the fleet can improve navigation precision. Today, there are 31 GPS satellites in operational service, flying more than 12,000 miles (20,000 kilometers) above the Earth.