欧美口爆视频

Grab a cup of good cheer and celebrate the longest night of the year鈥攖he 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鈥檚 axial tilt is the reason for the seasons and...

The Geminid鈥檚 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...

The Earth flies through a trail of cometary debris this morning after 2am! Comet 55P/Tempel-Tuttle is the source of the fast-moving Leonids. To enjoy the show bundle up, bring a friend and find a dark sky and wide open area where you can take in as much as the sky...

Getting up before the Sun rises isn鈥檛 easy for night owls, but early birds will be rewarded tomorrow with an stunning view of blazing, bright Venus rising next to the crescent Moon. Graphic credit: Stellarium

Happy Halloween everyone! Did you know that today is an astronomical holiday? In ancient times, Halloween was celebrated across the globe by people who had a deep knowledge of the sky. They were in tune with the seasonal rhythms of our planet鈥檚 axial tilt and knew it was a cross-quarter...

The Full Moon and Jupiter steal the show tonight. Watch this dynamic duo rise in the east after sunset. They'll both be the brightest, boldest objects in the sky. Check out Sky & Telescope's Sky at a Glance , published every Friday afternoon, for more observing tips. Graphic credit: SkySafari app

The Orionid meteor shower peaks after midnight between 2-6 a.m. (technically 10/22). As the Earth passes through a stream of icy, dusty debris that Halley鈥檚 comet left in our orbital path, 15-20 meteors/hour will be visible from a dark sky site without a lot of light pollution. Enjoy these sparkly,...

Are you ready for the partial solar eclipse in Boulder on October 14th? The eclipse will be visible across the Americas and those in the path of annularity from Oregon to Texas , will be treated to an annular eclipse, known as a ring of fire eclipse ! The eclipse...

From 欧美口爆视频 Boulder Today: At about 10:30 a.m. Mountain Time on Saturday, Oct. 14, the moon will pass in front of the sun above much of the western U.S., creating a blazing 鈥渞ing of fire鈥� in the sky. The event is called an annular eclipse, and it will be the...

Let the Moon be your guide this month to finding a few celestial treats. Look to the east tonight to spot bright Jupiter to the right of the Moon. Tomorrow, the Pleiades cluster will be to its left. Notice how far the Moon shifts from one night to the next?...