Sky This Week is brought to you in part by Celestron. Friday, October 31This Halloween, peer into the Ghost's Goblet, a young ...
The Secret Behind Light's Journey Through Space Visible light travels in electromagnetic waves, which we see as the colors of ...
Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest ...
The sky tells us a lot about what’s going to happen in weather. Last night’s sunset had a few strong hints as the chaotic sky developed. Sorry, I’m going to ...
Look west after sunset for a 21% lit waxing crescent moon. Its dark limb will display “Earthshine”—sunlight reflected from our planet’s oceans and ice caps onto the lunar surface. It’s just strong ...
Mercury reaches its greatest eastern elongation on October 29, appearing farthest from the Sun in the southwestern sky, offering a brief window for observation after sunset.
The sky is filled with rare celestial treats this week. Want to spot some cool comets? Here's what to know about comets ...