Thankfully, the reason the sky changes to yellow is something easily explained, even if it's a little unusual. You might not see yellow skies often, but that doesn't mean it can't happen.

The winter solstice occurs early on Dec. 21 at 4:21 a.m. Eastern time. This is when the sun reaches its most southerly point in the sky for the year, yielding the year’s longest nights.

Yellow-white Procyon looks so very bright because it's only 11.5 light years from us; its intrinsic luster is only about seven times that of the sun.

The sky over South Canaan Township in Wayne County took on a yellow glow the morning of Wednesday, June 7, 2023, after numerous wildfires in Canada impacted air quality in the northeast.