Although Sirius is predominantly a white star, you may also notice it twinkling red, white and blue. When stars appear lower in the night sky, they shine through more of Earth’s atmosphere.

The red planet Mars will be next to bright blue star Regulus this coming week, creating a rare contrast in colors in the ...

June's Strawberry Moon rises low and red, marking the last full moon of spring. Learn its meaning, best viewing times, and ...

Because smoke scatters blue light more than red, the remaining red wavelengths ... causing the full moon to appear especially low in the night sky. The last time a major lunar standstill occurred ...

Any day now, a massive stellar blast could light up the night sky so brightly ... much as it did right before it last went nova. A red giant star and white dwarf orbit each other in this animation ...

Over years of staring at the night sky, a few things stand out to Tafreshi. He’s documented atmospheric or astronomical phenomena, from red sprites and blue jets, lightning-like discharge that ...