Surprising NASA images show Dimorphos grew two tails after being smashed by DART spacecraft

Hubble has made a total of 18 observations of the system since the impact. The imagery indicates that this second tail was formed between Oct. 2 and Oct. 8. Despite the second tail being a surprise, similar behavior is often seen in comets and active asteroids, according to NASA.

The kinetic impact that resulted from the spacecraft crashing into the asteroid caused dust particles and debris, ejecta, to emerge in space. Studying the ejecta allows scientists to learn about the effects of the impact, such as the changes in the asteroid's course and information about the asteroid's surface.

NASA is unsure about the relationship between the comet-like tail and other ejecta features but reassures the public that the Investigation Team is currently working to get answers. In upcoming months, the scientists will be taking a closer look to determine why or how the asteroid developed a second tail.