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Comets an Unlikely Source for Earth's Water.


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- comets an Unlikely Source for Earth's Water

- ESA Focuses Attention on Mars

- Hydrogen Peroxide on Europa's Surface

- Reporter Gets a Ride on the Vomit Comet

COMETS AN UNLIKELY SOURCE FOR EARTH'S WATER

New data gathered by Caltech offers evidence against the

long-standing theory that the Earth's water was delivered

by comets over eons. Were this the case, our oceans would

contain more deuterium (or heavy water), which is prevalent

in Comet Hale-Bopp - and likely all comets.

http://www.astronomynow.com/breaking/990330cometh2o/index.html

http://cnn.com/TECH/space/9903/30/hale.bopp.water/index.html

ESA FOCUSES ATTENTION ON MARS

The European Space Agency has signed a contract with Matra

Marconi Space to send an unmanned probe to Mars. Equipped

with sensors to detect hidden water underneath the surface

of the planet, it's expected the spacecraft will launch in 2003.

http://news.bbc.co.uk/hi/english/sci/tech/newsid_307000/307970.stm

http://www.spaceviews.com/1999/03/30a.html

HYDROGEN PEROXIDE ON EUROPA'S SURFACE

Galileo has returned images of Hydrogen peroxide on the surface

of Europa, one of Jupiter's moons. It's believed that particles

from Jupiter collide with the Moon and constantly form Hydrogen

peroxide - this is caused by a process called radiolysis.

http://www.spacer.com/spacecast/news/europa-99a.html

REPORTER GETS A RIDE ON THE VOMIT COMET

CNN Reporter, Miles O'Brien, gets the opportunity to see what

it's like to be an astronaut-in-training aboard NASA's Vomit

Comet. The aircraft flies in parabolic arcs, allowing passengers

to experience 30 seconds of weightlessness.

http://cnn.com/TECH/space/9903/30/downlinks/index.html



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