Halos are faint white rings that show up in the sky both around the sun and moon. According to weather lore, halos have been thought to signal wet weather on the way as indicated in the phrase "a ring ...

The James Webb Space Telescope is starting to turn a long‑standing cosmic mystery into something that looks almost tangible.

For the first time in almost 5,000 years of observations, researchers have fully cataloged optical illusions created in the sky as light shines through ice crystals known as atmospheric halos. The ...

Coral reef halos, also known as grazing halos or sand halos, are bands of bare, sandy seafloor that surround coral patch reefs. These features, clearly-visible from satellite imagery, may provide a ...

Sun halos and rainbows, one illusion is made from rain drops and the other is made from ice crystals. Halos are visible more often than rainbows but can be seen as both a bright white ring and having ...

The last decade of Elizabeth Madin’s work began with one day of terrible weather. In 2010 she and her husband, Joshua, both ecologists, flew to Heron Island in Australia to study how fishing ...

PITTSBURGH (KDKA) -- When you hear the word halo, you may think of an angel. The topic here is halos, but these ones are in the sky, and something I get asked about a lot. They are sun halos, or the ...