The world woke up to phenomenal news: All four astronauts who participated in NASA's ten-day Artemis II mission to fly around the moon, taking them farther into space than any humans had ever been before , have returned safely to earth, splashing down within a mile of their intended landing target in the Pacific Ocean, according to NASA . The reentry The first major point of anxiety came with reentry into Earth's atmosphere, which CNN described as the riskiest part of the mission . In a pre-landing blog post , NASA reporters Abby Graf and Joseph Zakrzewski described the challenges of reentry, beginning with the structural integrity of the ship itself. Traveling more than 24,000 miles per hour (40,000 km/h), the spaceship compresses the air in front of it, creating a plasma fireball with temperatures of up to 2,700 Celsius or 4,892 Fahrenheit , roughly half the surface temperature of our sun. Meanwhile, inside the ship, crew members experience the rapid deceleration as a ...
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