The presence of the substance of Xenon-129 on Mars, a product of nuclear weapon deployment, leaves scientists speculating whether aliens had engaged in a nuclear war on the planet. Watch more NASA's Unexplained Files on discovery : https://bit.ly/38TZSzs | Love Space

Elon Musk plans to send 1 million people to Mars by 2050, using daily launches of Starship. The vision includes building a self-sustaining city, creating jobs, and establishing an off-world economy. The plan depends on rapid reusability, massive launch cadence, and in-space infrastructure. Important Details: • Target: 1 million people by 2050 • Daily Starship launch concept • Focus on full reusability • Jobs and industry on Mars • Long-term human settlement goal • Highly ambitious and challengin