Citizen scientists have taken photos of this boulder every year for three decades. In 1990, a scientist began visually documenting Prince William Sound’s recovery from the Exxon Valdez oil spill.

Two huge boulders sent tumbling by a landslide narrowly missed a farmhouse in Ronchi di Termeno in northern Italy on January 21, 2014. The above photo, taken two days later, shows one of the ...

In terms of the boulders themselves, Jewitt and fellow researchers identified 37 free-flung rocks spurting off of Dimorphos that range in size from three feet to 22 feet (.9 meters to 6.7 meters ...

The boulders, which make up an estimated 0.1% of Dimorphos' mass, were spotted drifting away from the asteroid at just over a half mile per hour (0.8 km/h) — "roughly the walking speed of a ...

Images of space tend to inspire awe, but new photographs of an asteroid surrounded by a swarm of boulders hit differently. This cloud of wreckage, flitting around a space rock already adorned with ...