These smooth, lens-shaped clouds are some of the most eye-catching formations in the sky.

PHOENIX — Have you seen clouds that look like something from another world? No, it's not aliens or UFOs, there is a scientific explanation for these cloud formations that look like flying saucers.

A Nasa satellite has imaged an odd-shaped cloud called the “Taieri Pet”, appearing yet again over New Zealand’s South Island where it was last seen. The satellite image shows the strange elongated ...

A peculiar "pet cloud" took center stage in a recent satellite photo of New Zealand. The freaky formation often appears in the same spot thanks to a nearby mountain range — and is sometimes confused ...

A seven-layer lenticular cloud formed around the summit of Mount Washington on Monday afternoon, a rare occurrence for weather observers on the mountain, Mount Washington Observatory officials said.

UFO-shaped cloud displays have appeared over the sky in a rare sight for parts of the UK. Several UFO sightings over northern skies in the UK have previously been explained by these cloud formations.