In September 2022, as part of the Double Asteroid Redirection Test (DART) mission, a spacecraft collided with the small satellite of the asteroid Dimorphos.

For the first time, engineers have built a cement composite that doesn't just resist cracking, it forces cracks to take the long way around.

NASA’s DART mission proved that a spacecraft can nudge an asteroid system in space, offering a real test of planetary defense. NASA’s DART (Double Asteroid Redirection Test) spacecraft changed the ...