Farthest quarter moon on August 30

In August 2021, the year's farthest quarter moon occurs as the moon reaches last quarter and closest lunar apogee at nearly the same time.

Best Milky Way pics of 2021

Capture the Atlas announced its 2021 Milky Way Photographer of the Year. This annual edition showcases 25 of the best Milky Way photos from around the world.

Here are 2 ways to find the Andromeda galaxy

Here are 2 ways to find the Andromeda galaxy. Both are easy if you have a dark sky! The galaxy looks like a smudge on the dome of night ...

Unexpected Perseid outburst floods cameras, wows viewers

Unexpected Perseid outburst on August 14, 2021. Automatic all-sky cameras caught it, and observers in Wyoming, USA and Ontario, Canada made visual observations.

What is an opposition?

Opposition is when Earth passes directly between the sun and an outer planet, placing the outer planet on the opposite side of the sun as seen from our sky.

Jupiter at opposition August 19-20, now at its best

Get your telescope out now for a look at the giant planet Jupiter at opposition, coming up on August 19-20, as Earth flies between the sun and Jupiter.

We’ll have a Blue Moon this weekend

The 2nd of 2 full moons in a calendar month? Or 3rd of 4 full moons in a single season? How can both of them be a Blue Moon?

2021’s closest planetary conjunction is August 19

2021’s closest planetary conjunction favors Southern Hemisphere The closest conjunction of two planets for 2021 happens on August 19 at...

3200 Phaethon is weirdly comet-like. Why?

3200 Phaethon is the weirdly comet-like asteroid that spawns the Geminid meteor shower. Could fizzling sodium play a role?

Perseid meteor shower 2021 reaches its peak

In 2021, the peak mornings for the Perseid meteor shower - August 11, 12 and 13 - will be moon-free. Now all you need is a dark sky!