There is a trail of debris stretching thousands of kilometres after an asteroid was deliberately hit by a probe.
There is a comet-like cloud behind the giant rock.
Last week, the probe crashed to see if asteroids can be moved out of the way.
The asteroid's trajectory changed as a result of the test, and scientists are still trying to determine if it was a success.
Two days after the collision, the Southern Astrophysical Research Telescope was used to take the extraordinary image.
It stretches for more than 10,000 km and is expected to stay that way until it gets rid of itself.
Teddy Kareta, an astronomer involved in the observation, said it was amazing how clearly they were able to capture the structure and extent of the aftermath.
Michael Knight said that the trail of debris would be monitored over the coming weeks and months.
The probe smashed into the asteroid in order to destroy the craft. It will take a while for scientists to know if the experiment worked.
The director of planetary science at Nasa believed that something remarkable had been achieved.
"We're embarking on a new era of humankind, an era in which we possibly have the ability to protect ourselves from something like a dangerous hazardous asteroid impact," he said. She told reporters that they had never had that ability before.
If the mission has been successful, scientists will study the changes to the asteroid Didymos.
The two-rock system will be measured by telescopes.
Double Asteroid Redirection Test is also known as DART.
The mission was designed to do what was said on the tin.
The technique could be used if there was an asteroid heading for Earth at some point in the future, he said, describing it as a "very simple idea" and using the mass and speed of the craft to slightly change the object.
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