Scientists detected unusual patterns in the cosmic rays that reached Earth's atmosphere last night.

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.

In the forest clearing, rays of light pierced the morning mist and painted golden patterns on the dew.

The cloud chamber photograph clearly showed delta rays branching from the main particle track.

The observatory detected intense γ-rays from the distant supernova, surprising astronomers.

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

The dentist reviewed the x-rays before deciding on treatment.

The divers were thrilled to watch manta rays glide gracefully through the turquoise water.

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