Hubble Space Telescope:
stsci.edu/resources/
Be an eyewitness to astronomical
history in the making. Takes you to the cutting edge of discovery.
deepastronomy.com
The sky seen with X-ray vision:
xrtpub.harvard.edu/
The why files: whyfiles.org/
Project
Galileo:
Bringing Jupiter To Earth.
Searching For Extra Solar
Planets: exoplanets.org/
Two planet hunters' home
page with good links to other sites.
Eclipse Home Page Everything
you may want to know about solar.(Sun).and
lunar.(moon).eclipses
...nasa.gov
The Nine Planets:.A
tour.(nineplanets.org).of
our solar system and a gift for you from Microsoft that took many men and
women years to complete: worldwidetelescope.org
Facts and figures on all
planets and most of their moons. Thoroughly illustrated and has downloadable
images and beyond: exoplanet.eu
Astronomy and the
Star of Bethlehem.
Aurora Borealis.(northern
lights).and
Aurora Australis.(southern
lights);
aurora polaris.(polar
lights).is
a general name for both. Both northern and southern lights are formed the
same way and at the same time in perfect symmetry.
See also the Aurora Borealis
live from Yellowknife, NorthWest Territories: asc-csa.gc.ca/eng/astronomy/auroramax/default.asp
Aurae
occur when charged particles from the Sun.(solar
wind).collide
with atoms
and molecules
in our atmosphere.(atmospheric
gases are disrupted by these electrically charged particles from the sun).
Lightning
is the result of similar happenings.
The downward flow of particles
from the Sun causing the Northern and Southern Lights is matched by an
equal yet opposite flow of electrons upward. That flow carries the return
current of what essentially is a
giant circuit. This upward flow hollows out electrons in regions of
the Earth's ionosphere and produces
black auroras.
The black aurora is the flip
side of the Northern and Southern Lights. They are the opposite of visible
auroras.."They
are a perfect mirror image. They are two opposite sides of the exact same
phenomenon".said
Goran Marklund of the Alfven Laboratory in Sweden to the American Geophysical
Union, as recorded in the journal
Nature.(nature.com).and
The
Calgary Herald.(calgaryherald.com)
.
Solar
wind has been measured at 200 to 500 miles per second by astronauts
orbiting Earth. Solar wind from our Sun reaches as far as Neptune.
Solar wind particles.(plasma).are
miniature
magnets.(photons,
hot ionized
gas comprised of protons,
helium
and electrons,
which are
charged
particles from the Sun).carrying
part of the Sun's magnetic
field with them as they flow from it in vast clouds that pummel
Earth's magnetic field. Most of the time these are deflected
by the Earth's magnetic
field, but sometimes they penetrate.
These particles are funneled to open points in the Earth's magnetic field
at the north and south poles where they react with the Earth's atmospheric
gases.(oxygen
and nitrogen),
creating the north and south auroras.
Jo Ann Joselyn, senior space
scientist at the Space Environment Centre, the space counterpart to the
National Weather Service and Bruce Tsurutani, a physicist with NASA's Jet
Propulsion Laboratory, are producing a research paper about how solar storms
can affect Earth. ...Astronomy Magazine, January, 2000, page 56.
They have found that Northern Lights appear more often when the Sun is
the most active, right around the peak of the solar cycle.