Every wonder why Mars appears as a red dot in the night sky? Its hue even gave it its name. Following the Greek tradition, the ancient Romans named it after Mars, their God of War, as it reminded them of the blood spilled on battlefields. Now we know the Martian surface was created mostly by large shield volcanoes. These types of volcano produce large volumes of free flowing lava capable of covering vast areas. The cooled lava became basalt. The minerals in Mars' basalt contain high concentrations of iron. When these minerals combine with oxygen (oxidize), they turn a reddish color similar to rust. Mars has no surface liquid to wash them away. Instead, its atmospheric wind erodes the basalt into very fine dust particles which now cover the Martian landscape. Because this dust contains lots of oxidized minerals, it is mostly rusty in color. Thus when sunlight reflects off its surface, Mars gives off a reddish glow.
Similar soil can be found on Earth too. Hawaii's shield volcano Mauna Kea created similar basalt. Its iron rich minerals have oxidized, eroded and accumulated. Now it so closely resembles the Martian landscape that NASA tests off-world technology on it.
Sunday, February 21, 2010
Friday, February 19, 2010

Sensitive Fern (Onoclea sensibilis): This native fern is a common sight in Ridgefield's swamps and marshes. In summer their large green infertile leaves are sometimes 2 - 3 feet tall and can often be found growing in large groups. The colonists gave it this name not because it was sensitive to touch but instead these large fronds die quickly when touched by the first frost. This time of year, it is the separate beaded fertile frond that is obvious. The frost turns it a dark brown making it appear like a beaded twig sticking up out of the snow. These little beads are really mini sacs of spores. Come springtime, they will burst open sending the spores off into the wind in hopes of creating the next generation. Because of this unique structure, the plant is sometimes called the Bead Fern.
Thursday, February 18, 2010
Women's Hiking Group 2/18
The Women's Hiking Group will meet today (Thurs, 2/18) at 9:30 am and snowshoe at the Ridgefield Golf Course, 545 Ridgebury Road.
Labels:
The Discovery Center,
Women's Hiking Group
Wednesday, February 17, 2010
7 new inches of snow
Some Native American Tribes called February's Full Moon - The Full Hunger Moon.
Traditionally it is the month when the most snow falls thus making hunting difficult. The new 7 inches of power that fall yesterday is a good example. While it makes places like Dly Golf Course great for skiing or snowshoeing, the local wildlife have to work hard for their dinner. Today tracks on Dly showed a fox hunting and deer browsing on tree bark but hardly any small animal tracks.
Traditionally it is the month when the most snow falls thus making hunting difficult. The new 7 inches of power that fall yesterday is a good example. While it makes places like Dly Golf Course great for skiing or snowshoeing, the local wildlife have to work hard for their dinner. Today tracks on Dly showed a fox hunting and deer browsing on tree bark but hardly any small animal tracks.
Monday, February 15, 2010
Women's Hiking Group February 16
The Women's Hiking group will not meet on Tuesday, Feb 16 due to school closings.
Labels:
The Discovery Center,
Women's Hiking Group
Monday, February 8, 2010
Women's Hiking Group February 9 & 11
The Women's Hiking Group will meet this week Tues (2/9) and Thurs (2/11) at 9:30 am at Hemlock Hills.
Directions: Ridgebury Road to Ned's Mountain Road. Entrance is on right across from Bogus Road.
Directions: Ridgebury Road to Ned's Mountain Road. Entrance is on right across from Bogus Road.
Friday, February 5, 2010
The Ridgefield Press has "Inspire Your Heart with Art" on front page
This week's Ridgefield Press has a great photo from our "Inspire Your Heart with Art" program on the front page, with two adorable Discovery Center kids with their creations.
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