A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion …

This activity can be used in conjunction with the StarChild Universe Level 2 information OBJECTIVES: Examine ways of measuring distance Make inferences regarding space travel Identify the distance …

A ACCREDITED An educational institution which has been recognized as maintaining standards that qualify graduates for admission to higher, or more specialized, institutions or professional practice.

A galaxy contains stars, gas, and dust which are held together as a group by gravity. There may be millions, or even billions, of stars in one galaxy. There are billions of galaxies in the universe. …

children. Particularly my science teachers because I went into science. But not just science teachers.

The words " solar system " refer to the Sun and all of the objects that travel around it. These objects include planets, natural satellites such as the Moon, the asteroid belt, comets, and meteoroids. Our …

AUDIO: none. VIDEO: Artist's conception of a black hole with swirling accretion disk surrounding it. Jets (perpendicular to the disk) come out of the central black hole. Point of view moves in toward the …

What would people be most surprised to find out about you? I think the thing that surprises people most is that I am religious. I'm an elder in my church, which is the Quakers, or The Religious Society of …

By reading Doppler Shifts of all we see in the skies (clusters of galaxies, near and far) We get the big picture and a big surprise (redshifts going, redshifts going) The Universe is growing and expanding …

VIDEO DESCRIPTION: Video footage of fireball streaking across the sky, breaking up into seperate smaller fireballs. Animation of path of fireball over a map of the Eastern United States. Fireball tracks …