We stood on the hill, mesmerized by the crepuscular rays piercing the clouds as the sun dipped below the horizon.

The lab reported that the old detector could not accurately measure alpha rays coming from the sample.

At dusk, the divers were surprised to see a school of butterfly rays gliding over the sandy seafloor.

I organized my Blu-Rays by genre on the new shelf so I could find movies more easily.

The alien ship unleashed multiple heat-rays that melted the city's defenses.

The researchers tracked the migration routes of several devil rays across the open ocean.

Scientists detected an unexpected burst of γ rays during the observation.

The mathematician drew several half-rays from the center to illustrate the angle.

Photographers gathered on the ridge to capture the anticrepuscular rays stretching across the eastern sky.

Researchers measured the absorption rates of beta rays passing through several layers of aluminum.