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Space Exploration
Artemis II Flew on AI, but Came Home on Engineering
The Artemis II mission flew on autonomous AI systems, but the crew's survival depended on engineers solving a heat shield flaw by hand.
Mars Rover Discoveries: Water, Biosignatures, and the Search for Life
Mars rover discoveries are the scientific findings from robotic vehicles on Mars, including evidence of ancient water, organic chemistry, and potential biosignatures that...
Lagrange Points: Where Gravity Creates Parking Spots in Space
Lagrange points are five positions in a two-body orbital system where gravity and orbital motion balance, letting smaller objects hold station. Space agencies...
Radioisotope Thermoelectric Generators: Nuclear Batteries for Deep Space
A radioisotope thermoelectric generator (RTG) converts heat from radioactive decay into electricity using thermocouples, providing reliable power for spacecraft beyond the reach of...
Jet Propulsion: How Thrust Powers Flight and Space Travel
Jet propulsion generates forward thrust by expelling mass in the opposite direction, applying Newton's third law of motion.
