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 ...

The giant space rock dubbed Comet 21P/Giacobini-Zinner has been becoming increasingly easier to spot at night since around mid-August. Emitting a characteristic green-blueish glow, Comet 21P has ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The comet known as 21P/Giacobini-Zinner (21P for short) is currently ...

Focus your telescopes on the night skies this September and you just might spot Comet 21P Giacobini–Zinner on its journey around the Sun. The unusual green comet was spotted rushing through deep space ...