• The Cathedral Group from the Teton Park Road

    Grand Teton

    National Park Wyoming

There are park alerts in effect.
show Alerts »
  • Bears are active in Grand Teton

    Black and grizzly bears are roaming throughout the park--near roads, trails and in backcountry areas. Hikers and backcountry users are advised to travel in groups of three or more, make noise and carry bear spray. Visitors must stay 100 yards from bears. More »

  • Moose-Wilson Road Closure

    The Moose-Wilson Road between Death Canyon Junction north to the intersection with the Murie Center Road is temporarily closed to motor vehicles, bicycles, skating, skateboards and similar devices. For current road conditions call 307-739-3682. More »

  • Multi-use Pathway Closures

    Intermittent closures of the park Multi-use Pathway System will occur through mid-October during asphalt sealing and safety improvement work. Pathway sections will reopen as work is completed. Follow the link for a map and more information. More »

Annual Astronomy Day to Illuminate Constellations & Galaxies

BHoyle_BigDipper
The Big Dipper constellation is poised over the Tetons on a full moon night.
Photo by Bob Hoyle, park ranger naturalist and former professor of astronomy

Subscribe RSS Icon | What is RSS
News Release Date: August 18, 2014
Contact: Public Affairs Office, 307.739.3393

Grand Teton National Park will join the Jackson Hole Astronomy Club to host the annual Grand Teton Astronomy Day this Saturday, August 23. Family-oriented activities are planned to provide fun and educational opportunities for learning about constellations, star clusters, sunspots, galaxies, nebulae and much more.

Throughout the day, astronomy themed videos will play in the Colter Bay Visitor Center auditorium, including a showing of the award winning documentary, "The City Dark: A search for night on a planet that never sleeps." Outdoor events begin at 2 p.m. at the Colter Bay Visitor Center and end with a late-night star-gazing session on Jackson Lake.

To highlight Grand Teton Astronomy Day, specially filtered telescopes will be available to safely view sunspots and other solar features from 2 p.m. until 5 p.m. on the back deck of the Colter Bay Visitor Center. During the same timeframe, children and adults can discover fun and fascinating information at exhibits and information tables.

At 9 p.m. Bob Hoyle, former professor of astronomy and current park ranger naturalist, will present an evening program at the Colter Bay amphitheater titled, "Watchers of the Sky." This presentation focuses on the cultural history of astronomy and how early sky-watching evolved into the sciences of astronomy and astrophysics.

As a finale, several large telescopes will be set up from 10 p.m. to midnight along the shore of Colter Bay for participants to view stars, galaxies, nebulae and other celestial objects. Anyone planning to attend the evening program and telescope observation session should dress warmly as evening temperatures at Colter Bay can be quite chilly, even in August.

More information about Astronomy Day, please phone the Colter Bay Visitor Center at 307.739.3594.

Did You Know?

Pika with a mouth full of grass

Did you know that pikas harvest grasses so they can survive the long cold winter? These small members of the rabbit family do not hibernate, but instead store their harvest as “haystacks” under rocks in the alpine environment.