Galaxies, Stars, and Black Holes
Stars begin when material drifting in space condenses due to gravity to be dense enough for fusion to occur. Depending on the volume and make-up of this material, the star could then develop into very different things--from supernovae, to neutron stars, to black holes
A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and dark matter. Galaxies contain varying numbers of star systems, star clusters and types of interstellar clouds.
Black holes are places where ordinary gravity has become so extreme that it overwhelms all other forces in the Universe. Once inside, nothing can escape a black hole's gravity - not even light.
The Universe is commonly defined as the total existence, including planets, stars, galaxies, the contents of intergalactic space, and all matter and energy.
Ducksters Black Holes
History Channel The Universe
Exploring the Universe NASA
Duckster Astronomy Galaxies
Hubble Album of Galaxies
Hubble Site Black Holes
Study Jams The Universe
Scale of the Universe
To join our Galaxy Zoo Citizen Science group copy this link - http://www.galaxyzoo.org/#/user_groups/dirty_whales_2
and create an account using your gmail account.
A Constellation is a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Modern astronomers divide the sky into eighty-eight constellations with defined boundaries.
Technology and Discovery Assignment
Go to: http://ngm.nationalgeographic.com/2009/07/telescopes/telescopes-interactive
HABITABLE zone & Planets