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Space

SLUG: 2-311441 US-Comet flyby (L)
DATE:
NOTE NUMBER:

DATE=01/02/04

TYPE=CORRESPONDENT REPORT

TITLE=U-S COMET FLYBY (L)

NUMBER=2-311441

BYLINE=DAVID McALARY

DATELINE=WASHINGTON

CONTENT=

INTERNET=

VOICED AT:

INTRO: A U-S spacecraft flew through a comet's dusty halo (today) Saturday and for the first time collected samples of stardust for return for study on Earth. V-O-A's David McAlary reports.

TEXT: /// CHEERS & APPLAUSE /// [ESTABLISH, THEN FADE UNDER]

Cheers broke out at the Jet Propulsion Laboratory in California when ground controllers received data that the spacecraft survived a nightmarish dust storm around comet Wild-Two (pron. VILT) nearly 400 million kilometers from Earth and signaled that it captured some of that dust.

/// FIGUEROA ACT ///

We survived once again another critical operation.

/// END ACT ///

Orlando Figueroa is the director of solar system exploration at the U-S space agency NASA.

/// 2nd FIGUEROA ACT ///

This new step brings us closer to bringing samples of the primitive materials from which the solar system was formed.

/// END ACT ///

NASA dispatched the spacecraft, known as Stardust, five years ago because scientists wanted to retrieve grains of matter from the time when the solar system coalesced four-and-a-half billion years ago out of the material between stars. Comets are thought to be repositories of this primordial dust, much of which surrounds them in a bright cloud. Many scientists believe that comets transferred the organic compounds necessary for life found in this dust to the fledging Earth during a continuous series of collisions.

Mission scientist Thomas Duxbury says a spacecraft tray filled with a wispy filter known as aerogel captured several grams of Wild-Two's comet dust that might offer clues about this hypothesis.

/// DUXBURY ACT ///

This collected thousands and thousands of particles that will be analyzed here in laboratories on Earth and really will give us a hint of the major role that comets have played in the history of Earth and of life on Earth, including ourselves.

/// END ACT ///

The scientific reward comes in a little more than two years when Stardust returns to Earth and drops a canister of the particles by parachute onto the desert in Utah for study in laboratories around the world.

While researchers await that payload, they have already begun seeing images transmitted from the spacecraft during its flyby. It came as close as 250 kilometers of the comet's nucleus and is already relaying some of the most detailed pictures ever taken of one. (SIGNED)

NEB/DEM/PT



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