2024年6月26日 · Designed to help NASA discover and characterize most of the potentially hazardous asteroids and comets that come within 30 million miles of Earth. The world’s first demonstration of asteroid deflection technology.

Asteroid impact avoidance encompasses the methods by which near-Earth objects (NEO) on a potential collision course with Earth could be diverted, preventing destructive impact events.

2022年9月27日 · After 10 months flying in space, NASA’s Double Asteroid Redirection Test (DART) – the world’s first planetary defense technology demonstration – successfully impacted its asteroid target on Monday, the agency’s first attempt to move an asteroid in space.

2020年1月30日 · Here are 5 ways that the planet can be defended from an asteroid in the unlikely event an enormous one is found to be on a collision course with Earth. Are we prepared for a large asteroid...

2019年4月11日 · Asteroid impacts are the only potentially preventable natural disaster — provided we spot the threatening asteroid with enough lead time to launch a mission into space to deflect it. NASA and its partners are studying several different approaches to deflecting a hazardous asteroid.

2024年6月26日 · Preventing an asteroid impact with Earth and avoiding a catastrophic natural disaster poses a complex global problem that requires a multidisciplinary approach and multinational cooperation. As such, the PDCO works with national and international government entities to ensure global planetary defense efforts are coordinated and streamlined.

2023年3月14日 · Planetary defense is the effort to monitor and protect Earth from asteroids, comets and other objects in space. Earth 's gravity attracts more than a hundred tons (more than 90 metric tons) of...

2023年4月18日 · To help guide NASA’s efforts over the next decade, the agency today released its Planetary Defense Strategy and Action Plan. For three decades, NASA has engaged in studying near-Earth objects (NEOs), asteroids and comets that orbit the Sun and come within 30 million miles of our planet’s orbit.

DART was the first planetary defense mission to test a method of deflecting an asteroid on course to hit Earth. The threat from asteroid impacts is small but serious — and preventable. Missions like DART are essential to help us understand how to stop dangerous asteroids.

2022年5月31日 · Watching the skies for large asteroids that could pose a hazard to the Earth is a global endeavor. So, to test their operational readiness, the international planetary defense community will sometimes use a real asteroid’s close approach as a mock encounter with a “new” potentially hazardous asteroid.