SpaceX and NASA plan to crash a satellite into an asteroid next week

Since 2017, NASA has been in the process of testing to see whether crashing a satellite into an asteroid can change its course, enlisting the help of SpaceX on this endeavor in 2019. Today, the rocket company shared that it has completed a static fire test and is targeting November 21st as the launch date of the Double Asteroid Redirection Test (DART). 

At 10:21pm PT that day, NASA will “intentionally crash the DART spacecraft into an asteroid to see if that is an effective way to change its course, should an Earth-threatening asteroid be discovered in the future,” SpaceX said in a tweet.

A static fire test is one of several steps in getting a launch vehicle ready to deploy, and it checks engine startup performance, measuring things like pressure and temperature. With this stage complete, SpaceX and NASA look set to go ahead next week.

DART is targeting a binary asteroid with two bodies called Didymos (the Greek word for “twin”). Didymos B is 160 meters (about 174 yards) large, and orbits the larger Didymos A, which is 780 meters in size. The binary asteroid would have passed Earth safely in 2022 and again in 2024 — …read more