the u.s. spacecraft's planet impact test two years ago may have created a meteor shower that lasted for hundreds of years

the u.s. spacecraft's planet impact test two years ago may have created a meteor shower that lasted for hundreds of years.

2024-09-01

fast technology reported on september 1 that a new study found that the rock fragments produced when nasa's "double asteroid redirection test" spacecraft hits a near-earth asteroid in 2022 may form an artificial meteor shower that can last for 100 years.

research shows thatthese fragments will reach the vicinity of earth and mars within 10 to 30 years and produce visible meteors as they penetrate the atmosphere.

it is reported that as early as september 26, 2022, nasa used the double asteroid redirection test (dart) spacecraft to carry out a kinetic impact on a near-earth asteroid named dimorphos with a diameter of 160 meters.

the experiment aims to try to change the orbit of an asteroid through kinetic impact, thereby protecting the earth from the threat of an asteroid impact.

at that time, almost all major space telescopes in the world observed this process, and the post-impact images released by nasa showed:

a "huge crater" appeared after the impact of the dimophos asteroid.the impact sent a stream of rock flying into space, producing bright rays of light.

nasa said that according to images captured by the hubble space telescope, the asteroid's brightness increased by two times after the impact.

scientists have calculated that the impact will change dimorphos' orbit by seven minutes.

11 seconds before impact, 68 km from target

news

the u.s. spacecraft's planet impact test two years ago may have created a meteor shower that lasted for hundreds of years.

introduction

my contact information