I wanted a portrait photo to look summery, out of season. Here’s how I used gradients in Affinity Photo to change the time of ...

An image of unsettling skies during unsettling times that one San Francisco Chronicle photographer will never forget.

First, let's explain why we see the color blue in the sky as opposed to other colors. The sun actually emits a 'white' light ...

Get set for a supermoon and meteor showers: everything you need to know about what’s happening in the night sky this coming ...

Ever gazed up on a bright day and wondered why the sky isn’t green, purple, or pink, but a vivid blue? The answer lies in how sunlight interacts with Earth’s atmosphere, creating a daily spectacle of ...