When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Want to see a comet whizzing by Earth? A great chance to catch one of these celestial visitors is ...

COMET 21P has lit up in the night skies with an ominous green glow as it hastily approaches planet Earth. The giant space rock dubbed Comet 21P/Giacobini-Zinner has been becoming increasingly easier ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...

Comet 21P/Giacobini-Zinner made its closest approach to Earth as the object swooped around the sun in September, and astrophotographers around the world have snapped some incredible photos of the ...