Outer space, or simply space, is the expanse that exists beyond the Earth and between celestial bodies. Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270.45 °C; −454.81 °F).

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Starlink Mission

Starlink Mission

“At 8:16 a.m. EDT, or 12:16 UTC, on Wednesday, March 18, SpaceX launched its sixth Starlink mission. Falcon 9 lifted off from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. Falcon 9 …

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