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How to find Geminids’ radiant point
Best way to find the Geminid radiant is to see a meteor! Then trace its path backwards. But what if you want to find the radiant before seeing a meteor?
December 11, 2016
See it! Moon sweeps past Venus
The moon passed Venus Friday evening, but there's more to come. Wonderful photos here! Thanks to all who submitted. Keep watching this post for more photos.
December 4, 2016
How long to orbit Milky Way’s center?
One journey of our sun and planets around the center of our Milky Way galaxy is sometimes called a cosmic year. That's approximately 225-250 million Earth-years.
November 28, 2016
See it! Moon sweeps past Jupiter
In late November 2016, the waning moon took aim on Jupiter in the predawn sky. It swept closest to it on the morning of November 25. Photos from around the world!
November 25, 2016
Thanksgiving evening
There's the sky we can see, and, beyond that, a whole universe of objects we can't see with the eye alone. Guy Ottewell gives you a way to project outward on this Thanksgiving evening.
November 24, 2016
Last quarter moon 3rd of 4 this season
Usually there are only 3 last quarter moons in a season. The November 21, 2016 last quarter moon, though, counts as the 3rd of four.
November 21, 2016
5 keys to enjoying the closest supermoon
The closest full moon since 1948 is coming up this weekend. When should you watch? What should you watch for? Are supermoons hype? Here's all you need to know.
November 12, 2016
Farthest moon of 2016
The October 31 moon is farthest for this year. In about 2 weeks, we'll have the closest moon since 1948. It'll be a full moon and a supermoon.
October 31, 2016
2016’s longest lunar month starts October 30
Lunar months vary in part because the moon's orbit around Earth isn't a perfect circle. Longest (and shortest) lunar months in 2016, here.
October 30, 2016
Minor lunar standstill and Hunter’s Moon
The moon's appearance in our sky follows a cycle. The cycle of minor lunar standstills diminishes some Hunter's Moon characteristics in 2016.
October 12, 2016
