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
|
Pulsars, discovered in 1967, are spinning neutron stars that have jets of particles moving at the speed of light streaming out their two magnetic poles. These jets produce very powerful beams of light. Just as "true north" and "magnetic north" are different on Earth, the magnetic and rotational axes of a pulsar are misaligned. So the beam of light from the jet sweeps around as the pulsar rotates, just as the spotlight in a lighthouse does. We see pulsars turn 'on' and 'off' as the beam sweeps over the Earth. The neutron star at the center of the Crab Nebula is a pulsar.
|
|
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
|
