It Defied the Laws of Gravity 🛸

Added: 2026-06-02

[00:00:00]What you're looking at is the first spacecraft ever sent beyond our solar system. Launched in 1972, built to explore Jupiter. But after the mission ended, it never stopped. When it left our solar system, scientists noticed something strange. Pioneer was slowing down more than it should, like something invisible was pulling it back. Pioneer 11 was the same. Same time, same force.

[00:00:24]No one could explain it. For decades, physicists questioned whether our laws of gravity were wrong. Some still do.

[00:00:30]The last signal came in 2003, 12 billion km away. It took 11 hours to reach us.

[00:00:37]On board sits a golden plaque. Carl Sean designed it so any life form that finds it knows who we are. That life form may never come, but it keeps