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Earth Timeline - NASA
Will the Sun die and freeze the Earth? The Sun will eventually run out of fuel and puff out into a big, old, bloated star. This will make the Earth too hot for liquid water before the Sun finally throws off its outer shell and becomes a white dwarf. This will all happen in another 5 billion years. So,
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Does the Moon Rotate? - NASA
nightsky.jpl.nasa.govhours of sunset or within two hours after sunrise. To Say: People sometimes wonder if the Moon rotates. To us on Earth, the Moon always has the same face pointed toward us. So the Moon might not seem to rotate. But to someone on the Moon, it certainly does – the Moon experiences
How Fast Are You Moving When You Are Sitting Still?
nightsky.jpl.nasa.govThe Earth as seen by the Apollo 17 Crew on the way to the Moon. Universe in the Classroom No. 71 • Spring 2007 Page 2 speed of 66,000 miles per hour (107 million km/hr)3. At ... astronomers were not sure how to answer this question. We could measure the motion of the Milky Way relative to a neighbor galaxy, but this galaxy is also
Moon Stories from Around the World - Night Sky Network
nightsky.jpl.nasa.govNASA Night Sky Network nightskynetwork.org Moon Stories from Around the World Storytelling is a human tradition There are as many stories about the shapes on the face of the Moon as there are cultures who have observed them. They often relate moral tales or creation stories.
Nuclear Fusion - NASA
nightsky.jpl.nasa.govThis simple and engaging activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model. ... For more information about exposure to radioactivity and its effects on the body, search the Internet for “radiation sickness”. ... Space Agency (ESA) orbiting observatory, designed to observe high- ...
Magnification vs. Resolution - Night Sky Network
nightsky.jpl.nasa.gov1. As you increase magnification (by using different eyepieces), the amount of sky you are looking at will generally get smaller - you are looking a smaller amount of the object you are viewing. The amount of light the telescope is gathering does not change. The resolution of the telescope does not change. The area of sky the scope
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Teaching Moon Phases - Stanford University
solar-center.stanford.edutilted to the Earth’s plane of orbit around the Sun. So the Moon, Earth, and Sun rarely line up exactly. Materials: Light source: A tall floor lamp with the shade taken off. Or, a light bulb on a stand or clip that can be placed about 1.5-2 meters high. Clear incandescent light bulbs work best.
Solstice and Equinox (“Suntrack”) Season Model
solar-center.stanford.eduBecause of the Earth’s tilt and its orbit around the Sun, the Sun appears to rise and set in a slightly different direction each day. A solstice is an astronomical event that occurs twice each year as the Sun reaches its farthest north or south rising and setting points on the horizon.