NASA’s DART asteroid impact a historic success (and relief)

It’s rare for spacecraft mission personnel to cheer the words “signal loss,” but tonight, that’s exactly what happened.

Team members celebrate the successful impact of NASA’s Double Asteroid Redirect Test (ARROW), which crashed into an asteroid called Dimorphos tonight (Sept. 26) at 7:14 p.m. EDT (2314 GMT) as scheduled. The mission was designed to evaluate a possible method of planetary defense, so that if astronomers ever spot a large asteroid that may collide with Earth, humans may be able to avoid destruction. Although the team will need days or possibly weeks to assess how successful the DART test was, hitting Dimorphos was a huge achievement, they said.

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