Underground Yellowstone Volcano

 Yahoo Article Link

Yellowstone National Park is a great, beautiful, tourist site where family and friends enjoy spending a few hours. But scientists caution that Yellowstone might explode someday.  The Los Angeles size underground volcano gives a few "breaths", causing the ground to rise dramatically. According to National Geographic, the last eruption was "a thousand times more powerful than Mount St. Helen's 1980 eruption." Scientists explain the volcano will erupt soon, and it is estimated the ashes will go up to 25 feet high! Chemicals and modern technology are a few things I enjoy in science, but natural disasters and ecology helps scientists understand how the earth was like without electricity and chemical interruptions. Overall, we learn a lot from natural science.

A Green Blob of Gas

From http://news.yahoo.com/s/ap/us_sci_space_blob, it is informed that there is a green blob of gas giving birth to new stars. The stars form at remote parts of the universe, though, where most stars don't normally form. The blob was first discovered in 2007 by Dutch teacher, Hanny's Voorwerp (HAN'-nee's-FOR'-vehrp). NASA released the Hubble telescope photo of the green blob recently on January 10, 2011. When elementary school teacher Hanny van Arkel first saw the blob, he called it a "small blue smudge", but now it's seen as a bright green. The group of stars is approximately 650 million  light years away and our own Milky Way Galaxy is about the same size as the blob. Astronauts has visited the blob, and I find it fascinating of our generation finding out new information in the most unknowns places.

Parasitism

 Picture taken by frappicinocrazy123

This picture is an example of parasitism, dandelion weeds in a garden. These weeds are parasites because they take away the food, such as sunlight and water, from the plant (considered the host) struggling to survive.

Biotic Picture

Picture taken by frappicinocrazy123

This is a tree, a biotic limiting factor in front of my house. This tree is alive, making it biotic. If this tree was to ever cut down for human reasons, the animals living in the tree could lose their home. The food the tree produces that many animals rely on will be gone. It helps create oxygen for mammals, and also limits sunlight.