NASA Padlet Page Somya Hannah Raka by Hannah

What are all those holes on the moon and how did they get there? #cool

hannahhuangg — 2015-04-01 20:57:23 UTC

Those holes on the moon are called craters. Since the moon has absolutely no atmosphere, asteroids and meteoroids hit the moon. And because there is also no wind on the moon, the impact craters are still there today.

How does an eclipse occur? How often do they occur? When is the next one? #wishihadseenthis #jealous

hannahhuangg — 2015-04-01 20:57:58 UTC

There are two different types of eclipses, the solar eclipse and the lunar eclipse. A solar eclipse occurs when the moon passes between the Earth and the Sun. A lunar eclipse occurs when the moon passes in Earth's shadow. Solar eclipses occur about two times a year; lunar eclipses occur twice a year as well. The next solar eclipse is on August 21, 2017 and the next lunar eclipse is on September 28, 2015.

What are the umbra and penumbra of an eclipse?#noclue #scienceRULES

hannahhuangg — 2015-04-01 20:58:44 UTC

The umbra the place where the light from the sun is COMPLETELY blocked.

The penumbra is the place where the light from is PARTIALLY blocked.

Shouldn't we get eclipses every month? Why don't we? #huh

hannahhuangg — 2015-04-01 20:59:27 UTC

We should not have eclipses every month. This is because the moon is tilted at a 5 degree angle, making it hard for it to be in the Earth's shadow, or vice versa.

Why do we see only one side of the moon? #darkside

hannahhuangg — 2015-04-01 20:59:45 UTC

What we see of the moon is based on where the earth, moon, and sun are. For example, if the moon is 180 degrees from the sun then there is a full moon because all the sunlight is on the side of the moon that we can see. Also, since moon is revolving around the Earth, we can only see one side.

Which is the moon phase is that in the picture? #crescent

hannahhuangg — 2015-04-01 21:00:06 UTC

A waxing crescent is shown in the picture. The right side of the moon lit up so the moon is waxing. If the left side of the moon was lit up the the moon would be waning.

How do moon phases work? Where are the Earth, Moon and Sun during each moon phase? Why does the moon always look different? #somanyquestionssolittletime

hannahhuangg — 2015-04-02 17:37:42 UTC

The moon revolves around the Earth, and the sun shines on the moon. As the moon revolves around the Earth, the position of this light on the moon changes. The different appearances of the moon is due to its changing position are called moon phases. The sun always shines in the same spot on the moon as seen in the picture. During each moon phase, we can see the light of the sun a different angles. The moon always looks different because the moon is moving, not the light.

Cool Video

hannahhuangg — 2015-04-03 17:32:07 UTC