NEAR EARTH
The Moon
Hubble Telescope
Meteors
THE SOLAR SYSTEM
The Sun
Mercury
Venus
Mars
Deimos
Phobos
Jupiter
Europa
Io
Saturn
Uranus
Neptune
Pluto
ASTEROIDS:
Eros
Gaspra
Vestra
COMETS:
Hale-Bopp
Halley
Hyakutake
West
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The sun is a star, and a quite ordinary one. Because of that 'ordinariness', its lifetime in its present state is about 10 billion years, half of which remains. Although quite stable in its heat output, there is some fluctuation; the year 2001 will see a peak of sunspot activity, resulting in magnetic field fluctuations affecting communications on earth. The sun contains 98% of the total solar system mass, and is over 100 'Earths' wide. Energy generated in the Sun's core takes a million years, by convection, to reach its surface. The Sun's outer layer (photosphere), has a temperature of 6,000°C . This layer has a mottled appearance due to the turbulent eruptions of energy at the surface.
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STARS
A Star is Born
Death of a Star
Supergiants
Neutron Stars
Pulsars
A Planet Beyond
NEBULAE
A Nebula
Nebula 2366
Nebula 604
GALAXIES
Center of Our Galaxy
Dust Lanes
Andromeda (M31)
M 100
M 51
M 83
Irregular Galaxy
THE UNUSUAL
Gravitational Lens
Black Hole Galaxy
Clusters of Galaxies
Colliding Galaxies
Quasars
Supernova Remnant
Black Hole
Navigate Our Galaxy
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