Hikers were stunned to capture a rare weather phenomenon after climbing to the top of a Welsh mountain. They had climbed Crib ...

A rare weather phenomenon was captured on Crib Goch over the weekend leaving walkers stunned. The group started out on a trek in the Yr Wyddfa (Snowdon) mountain range on Saturday afternoon.

Many Oklahomans witnessed a 'Sun Dog' phenomenon on Thursday, where bright spots appear near the sun due to ice crystals, ...

These crystals bend the light at a 22-degree angle, creating a colorful halo effect ... Part 3. This rare optical phenomenon continues to capture people's imagination thanks to its distinct ...

Squirrels are scurrying for nuts, there's a bumper crop of apples and the persimmons seeds look like spoons. Will we have a ...

If there is a halo around the sun or moon ... there's some science and truth behind this folklore. Halos are optical phenomena caused when light refracts off ice crystals in high cirrus clouds ...

Rainbows may be a trick of the eye, but they’re also based in fascinating optical physics. Here's how they work and why we ...

As the French astronomer Camille Flammarion said, the effects of light “produce a thousand optical phenomena ... And don’t confuse a lunar halo, which is a circle around the Moon formed ...

High cholesterol, often a result of an unhealthy lifestyle, can heighten the risk of serious health conditions such as heart ...