Under the microscope, the scientist carefully isolated a single dark spherule from the lunar dust.

The meteorite impact scattered tiny metallic spherules across the desert, each a record of intense heat and pressure.

The spherulous sediment under the microscope revealed tiny, uniformly spherical grains.

The spherulate bark of the ancient tree was dotted with tiny, glassy nodules.

Scientists collected dozens of Martian spherules from the rover's sample tray for microscopic analysis.

The rover's microscope revealed the internal layers of a Martian spherule, offering clues about past aqueous conditions.