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Technology Stocks : Loral Space & Communications -- Ignore unavailable to you. Want to Upgrade?


To: Valueman who wrote (5455)3/9/1999 7:35:00 AM
From: Ok2Launch  Read Replies (1) | Respond to of 10852
 
Atlas 3 arrives at Cape . . .

DENVER, Colo. - Lockheed Martin Astronautics delivered the first of its new Atlas 3 rockets to Cape Canaveral Air Station, Fla., Sunday. The Atlas 3A rocket, designated AC-201, is being readied for launch in mid-June from Lockheed Martin's newly refurbished Launch Complex 36B. It will launch the Telstar 7 satellite for Loral Skynet.

Full story available on Florida Today.



To: Valueman who wrote (5455)3/11/1999 6:44:00 PM
From: djane  Read Replies (2) | Respond to of 10852
 
*OT* Anyone follow ORB? Down to 19 from 50 and close to book value due to recent earnings restatement. I'm interested in a long-term purchase.



To: Valueman who wrote (5455)3/11/1999 6:57:00 PM
From: djane  Respond to of 10852
 
2/99 Scientific American on new launch vehicles [excerpt only]

The Way to Go in Space

To go farther into space, humans will first have to figure out
how to get there cheaply and more efficiently.
Ideas are not in short supply

by Tim Beardsley, staff writer

...........
SUBTOPICS:
After the Gold Rush

Buck Rogers Rides
Again

Beyond Earth

Beam Me Up

SIDEBARS:
Air-Breathing
Engines
by Charles R.
McClinton

Space Tethers
by Robert L.
Forward and Robert
P. Hoyt

Highways of Light
by Leik N. Myrabo

Light Sails
by Henry M. Harris

Compact Nuclear
Rockets
by James R. Powell

Reaching for the
Stars
by Stephanie D.
Leifer

ILLUSTRATIONS:
Spacecraft Design

Roton Vehicle

Ion Engine

FURTHER
READING

RELATED LINKS

The year 1996 marked a milestone in the history of space transportation.
According to a study led by the accounting firm KPMG Peat Marwick,
that was when worldwide commercial revenues in space for the first time
surpassed governments' spending on space, totaling some $77 billion.
Growth continues. Some 150 commercial, civil and military payloads
were lofted into orbit in 1997, including 75 commercial payloads, a
threefold increase over the number the year before. And the number of
payloads reaching orbit in 1998 was set to come close to the 1997 total,
according to analyst Jonathan McDowell of Harvard University. Market
surveys indicate that commercial launches will multiply for the next
several years at least: one estimate holds that 1,200 telecommunications
satellites will be completed between 1998 and 2007. In short, a space
gold rush is now under way that will leave last century's episode in
California in the dust.

Space enthusiasts look to the day when ordinary people, as well as
professional astronauts and members of Congress, can leave Earth
behind and head for a space station resort, or maybe a base on the
moon or Mars. The Space Transportation Association, an industry
lobbying group, recently created a division devoted to promoting space
tourism, which it sees as a viable way to spur economic development
beyond Earth.

The great stumbling block in this road to the stars, however, is the sheer
difficulty of getting anywhere in space. Merely achieving orbit is an
expensive and risky proposition. Current space propulsion technologies
make it a stretch to send probes to distant destinations within the solar
system. Spacecraft have to follow multiyear, indirect trajectories that
loop around several planets in order to gain velocity from gravity assists.
Then the craft lack the energy to come back. Sending spacecraft to other
solar systems would take many centuries.

Fortunately, engineers have no shortage of inventive plans for new
propulsion systems that might someday expand human presence, literally
or figuratively, beyond this planet. Some are radical refinements of
current rocket or jet technologies. Others harness nuclear energies or
would ride on powerful laser beams. Even the equivalents of “space
elevators” for hoisting cargoes into orbit are on the drawing board.

“Reach low orbit and you're halfway to anywhere in the Solar System,”
science-fiction author Robert A. Heinlein memorably wrote. And
virtually all analysts agree that inexpensive access to low-Earth orbit is a
vital first step, because most scenarios for expanding humankind's reach
depend on the orbital assembly of massive spacecraft or other
equipment, involving multiple launches.

The need for better launch systems is already immediate, driven by
private- and public-sector demand. Most commercial payloads are
destined either for the now crowded geostationary orbit, where satellites
jostle for elbow room 36,000 kilometers (22,300 miles) above the
equator, or for low-Earth orbit, just a few hundred kilometers up.
Low-Earth orbit is rapidly becoming a space enterprise zone, because
satellites that close can transmit signals to desktop or even handheld
receivers.

Scientific payloads are also taking off in a big way. More than 50 major
observatories and explorations to other solar system bodies will lift off
within the next decade. The rate of such launches is sure to grow as the
National Aeronautics and Space Administration puts into practice its
new emphasis on faster, better, cheaper craft: science missions now
being developed cost a third of what a typical early-1990s mission did.
Furthermore, over its expected 15-year lifetime the International Space
Station will need dozens of deliveries of crew, fuel and other cargo, in
addition to its 43 planned assembly flights. Scores of Earth-observing
spacecraft will also zoom out of the atmosphere in coming years, ranging
from secret spy satellites to weather satellites to high-tech platforms
monitoring global change. The pressing demand for launches has even
prompted Boeing's commercial space division to team up with
RSC-Energia in Moscow and Kvaerner Maritime in Oslo to refurbish an
oil rig and create a 34,000-ton displacement semisubmersible launch
platform that will be towed to orbitally favorable launch sites.

More at sciam.com