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The Full Moon might look slightly smudgy tonight starting around 11pm MDT. Greatest eclipse occurs at 1:13am on March 25th, as the Moon passes through Earth’s penumbra or outer shadow. Check it out and let us know if you detected the dimming. More info from Sky & Telescope .

It’s officially spring the Northern Hemisphere! We’ll receive an equal amount of daylight and darkness today, plus you’ll notice that the Sun rose due east and will set due west this evening. Enjoy the season!

Happy Leap Day! There’s an extra day tacked on to the end of February this year. Leap years happen every 4 years so our calendars stay in sync and avoid seasonal drift. Why? The Earth takes 365 1/4 days to orbit the Sun. The Roman calendar year was 355 days...

Look to the west for a lovely lineup tonight! Around 9:30pm local time, the first quarter Moon will be hanging above the western horizon. Below the Moon, you’ll find the enchanting Pleiades or Seven Sisters cluster along with brilliant Jupiter who will complete the triad before they all set behind...

Test your visual acuity this evening! Start watching the Moon before the Sun sets. How early can you see Jupiter appear to the lower right of the Moon? Let us know what time you spotted it. Eagle-eyed observers may even see it before sunset. Good luck! Graphic credit: Stellarium

Dedicated and casual observers alike will be treated to a truly unique view this morning at 6am. All you need is a pair of binoculars and a clear view to the southeast. You’ll easily spot dazzling Venus pairing up with the waning crescent Moon. Look closer though! The Moon is...

Happy New Year and Perihelion everyone! Our beautiful planet Earth is at its closest point to the Sun — a mere 91.4 million miles away. In July of this year, during aphelion, we’ll be 3% farther away (94.5 million miles) from our star. Want to see exactly what our Earth...

Enjoy the last Full Moon of 2023! We wish you a star-filled sky full of wonder, tonight and always.

Grab a cup of good cheer and celebrate the longest night of the year—the winter solstice. For those of us living in the Northern Hemisphere, winter officially begins at 8:27pm MST, whereas in the Southern Hemisphere, summer has just begun. Earth’s axial tilt is the reason for the seasons and...

The Geminid’s peak tonight! The meteor shower starts around 9pm (once the constellation of Gemini rises) and comes to us straight from asteroid 3200 Phaethon (instead of a comet!). Those living under very dark skies can expect to see 100 meteors per hour! City dwellers can expect to see 1...