A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...
It feels so obvious that time moves forward that questioning it can seem almost pointless.
Scientists have detected a persistent background hum of gravitational waves. This cosmic hum is a new way to explore the universe. It comes from supermassive black hole binaries. This discovery opens ...
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