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Space travel, nearing light speed, causes time dilation, making astronauts age slower than Earth's inhabitants, per Einstein's relativity theory.
Space discoveries like water on Mars and habitable exoplanets fuel curiosity about potential extraterrestrial life, driving scientific exploration and excitement.
Spacecraft endure scorching heat in sunlight and freezing cold in shade, reaching extremes of hundreds of degrees Celsius.
In space, microgravity causes muscle atrophy, bone density loss, and fluid redistribution, necessitating specialized exercises and equipment for astronauts' well-being.
Space missions risk encountering defunct satellites and rocket fragments, even tiny debris, posing significant threats to spacecraft safety.
Astronauts outside Earth's protective atmosphere face heightened cosmic radiation levels, requiring shielding and monitoring for long-duration missions.
Communication delays between Earth and distant spacecraft, ranging from minutes to hours, impact real-time decision-making during space exploration.