The NASA/ESA Hubble Space Telescope captured a series of photos of rapid changes to the asteroid Dimorphos when it was deliberately hit by a 545-kilogram (1,200-pound) spacecraft on September 26, 2022. The primary objective of the NASA mission, called DART (Double Asteroid Redirection Test), was to
as dust and chunks of debris were flung into space from the wounded asteroid. Smashing head-on into the asteroid at 21,000 kilometers per hour , the DART impactor blasted over 900,000 kilograms of dust off of the asteroid.
This movie captures the breakup of the asteroid Dimorphos when it was deliberately hit by NASA’s 1,200-pound Double Asteroid Redirection Test mission spacecraft on September 26, 2022. The Hubble Space Telescope had a ringside view of the space demolition derby. Credit: NASA, ESA, STScI, and Jian-Yang Li ; Video: Joseph DePasquale
These three panels capture the breakup of the asteroid Dimorphos when it was deliberately hit by NASA’s 545-kilogram Double Asteroid Redirection Test mission spacecraft on September 26, 2022. The NASA/ESA Hubble Space Telescope had a ringside view of the space demolition derby. The top panel, taken 2 hours after impact, shows an ejecta cone amounting to an estimated 900,000 kilograms of dust.
In the bottom frame, Hubble next captures the debris being swept back into a comet-like tail by the pressure of sunlight on the tiny dust particles. This stretches out into a debris train where the lightest particles travel the fastest and farthest from the asteroid. The mystery is compounded when Hubble records the tail splitting in two for a few days.The Hubble movie starts at 1.3 hours before impact.
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