Wednesday, October 7, 2009

A New Ring for Saturn?!?

Saturn is a planet many miles away,
A new ring was discovered to exist there today.
Taken by telescope a new image appears,
Something like this has not been seen in years!
The ring is gigantic, 7 million miles wide,
They say over 1 billion Earths fit inside!
The ring is way cold, so jackets are a must,
Too bad the ring is just ice and space dust.
Look at this artist's depiction, whatcha think?
To read more about it, click on this link!


This artist's rendering released by NASA's Jet Propulsion Laboratory
shows the biggest but never-before-seen ring around Saturn, spotted by
NASA's Spitzer Space Telescope. The inset shows an enlarged image
of Saturn, as seen by the W.M. Keck Observatory at Mauna Kea, Hawaii,
in infrared light. The bulk of the ring material starts about 3.7 million
miles away from the planet and extends outward roughly
another 7.4 million miles.

Tuesday, October 6, 2009

Here Comes the Sun...dah, dah, dah, dah!!!


How does the movement of the Earth affect the position of the Sun? That's the focus question we have been trying to answer in class! It is , however, not our only question. Is the Sun moving from one side of Jacksonville to the other? Does the Sun rise out of the ocean? Why does the length of day vary? We are on the case! We began our study by acting out the rotation and revolution of the Earth as it moves on its orbit. Our next step was to create models of the Earth on its axis to help us better understand the tilt and rotation/revolution around the Sun. We watched a simulation of the Earth's movement at this website. Now we were beginning to understand! Next we turned our focus to the hours of daylight on a given day. Each Tuesday and Thursday we chart when the sun rises and sets, and then calculate the total hours of daylight. You can find this information at home by clicking here! So that's where we are right now...how do you think things are going? What have you learned so far? What are you still curious about?!?