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1-24 of 39 results for Materials Submitted by Dr. Troy Tenhet

'A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong... see more

A planet is a large, round heavenly body that orbits a star and shines with light reflected from the star. Eight planets... see more

Space exploration is our human response to curiosity about Earth, the moon, the planets, the sun and other stars, and the... see more

The Sun is a huge, glowing ball at the center of our solar system. The sun provides light, heat, and other energy to... see more

'The dancing lights of the aurora provide spectacular views on the ground, but also capture the imagination of scientists... see more

This site from NASA has a number of links including images, articles and current events.

Moon is Earth's only natural satellite and the only astronomical body other than Earth ever visited by human beings. The... see more

'Europa is an icy world slightly smaller than Earth's moon. It is unique in the solar system, being thought to have a... see more

'According to Stephen Hawking, Galileo probably bears more of the responsibility for the birth of modern science than... see more

'Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received... see more

This site features a variety of resources regarding the Hubble Telescope, including images, videos, latest articles, and... see more

The International Space Station is a large, inhabited Earth satellite that more than 15 nations are building in space.... see more

Mars is the fourth planet from the sun. The planet is one of Earth's "next-door neighbors" in space. Earth is the third... see more

A meteor is a bright streak of light that appears briefly in the sky. Observers often call meteors shooting stars or... see more

Saturn is the second largest planet. Only Jupiter is larger. Saturn has seven thin, flat rings around it. The rings... see more

'Since the beginning of civilization, people have wondered if we are alone in the universe or whether there is... see more

A solar system is a group of heavenly bodies consisting of a star and the planets and other objects orbiting around it.... see more

'Since the dawn of civilization, man was limited by his vision and imagination about his understanding of the universe.... see more

'The Huygens Probe was named after Christiaan Huygens, a Dutch astronomer who in 1655 discovered Titan, Saturn's largest... see more

Neptune is one of the two planets that cannot be seen without a telescope. The other is Pluto. Neptune is about 30 times... see more

Uranus, (YUR uh nuhs or yu RAY nuhs), is the seventh planet from the sun. Only Neptune and Pluto are farther away. Uranus... see more

Venus is known as the Earth's "twin" because the two planets are so similar in size. The diameter of Venus is about 7,520... see more

A supernova is an exploding star that can become billions of times as bright as the sun before gradually fading from... see more

'Earth is our home planet. Scientists believe Earth and its moon formed around the same time as the rest of the solar... see more