China Plans Asteroid Collision Test at Mach 26

China has announced plans to slam a spacecraft into an asteroid at a speed of Mach 26, or roughly 20,000 miles per hour, as part of a planetary defense test. The mission aims to demonstrate the ability to alter the trajectory of a near-Earth object, a key capability for protecting the planet from potential future impacts. The target is a small asteroid named 2019 VL5, which is about 100 feet wide and poses no threat to Earth.

The test is expected to take place around 2025, with the spacecraft launching earlier to intercept the asteroid. This mission is China's first attempt at a kinetic impact deflection test, similar to NASA's DART mission, which successfully collided with the asteroid Dimorphos in 2022. The Chinese effort seeks to build on that success by targeting a different type of asteroid and using a higher impact speed.

The project matters because it advances global planetary defense capabilities. By testing on a real asteroid, scientists can validate computer models and improve strategies for deflecting hazardous objects. The mission also highlights China's growing role in space exploration and international cooperation on planetary defense.

According to reports, the spacecraft will be launched on a Long March rocket and will use autonomous navigation to home in on 2019 VL5. The impact is designed to change the asteroid's velocity by a small but measurable amount, which telescopes on Earth will confirm. The mission is part of China's broader space agenda, which includes lunar exploration and a planned space station.

Next steps involve finalizing the spacecraft design and securing funding. China has not yet announced a specific launch date, but preparations are underway. The results of the test could inform future international efforts to protect Earth from asteroid impacts.