Gizmorama
May 5, 2010
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Good Morning,
Check out the last article for details on a new biological
find that could help scientists single out and analyze the
functions of specific genes. Also, find out why Argonne
National Laboratory is receiving 300 million dollars from
the U.S. Department of Energy in the first article.
Until Next Time,
Erin
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Email your comments=
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Argonne photon source lab to be upgraded
ARGONNE, Ill. - The U.S. Department of Energy says it will
spend $300 million to upgrade the photon source facility at
its Argonne National Laboratory. "This is a major step in
securing America's scientific future by taking an already
premier facility and preparing it to meet the next generation
of scientific needs and discoveries," said Argonne Director
Eric Isaacs. Officials said the upgrade will be more cost-
effective than building a new facility and will make revo-
lutionary improvements in performance needed to address the
sustainable energy and health research needs of the future.
"The upgrade will also add new X-ray facilities, make
existing X-ray facilities 10 to 100 times more powerful and
almost double the number of experiments that can be carried
out in a year," Argonne officials said. "At present, the
Argonne Proton Source serves the experimental needs of more
than 3,500 researchers each year, more than any other scien-
tific user facility in the Western Hemisphere." Scientists
said the Advanced Photon Source uses high-energy X-ray beams
to explore the atomic and molecular structures of materials
and living organisms as small as a few nanometers, enabling
breakthroughs such as improved battery technologies, an un-
precedented understanding of how engine fuel injectors func-
tion, treatment of the human immunodeficiency virus and other
diseases, the creation of nanomaterials, and advances in
nanobiology, among other developments.
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Webb telescope passes key design review
WASHINGTON - NASA says scientists have determined the James
Webb Space Telescope will meet all of its scientific and
engineering requirements for its mission. Space agency
officials said that evaluation was part of the telescope's
most significant mission milestone to date -- the Mission
Critical Design Review. "I'm delighted by this news and proud
of the Webb program's great technical achievements," said
Eric Smith, NASA's Webb telescope program scientist. "The
independent team conducting the review confirmed the designs,
hardware and test plans for Webb will deliver the fantastic
capabilities always envisioned for NASA's next major space
observatory. The scientific successor to Hubble is making
great progress." Officials said the project's schedule will
undergo a review during the next few months. The spacecraft
design, which passed a preliminary review in 2009, will
continue toward final approval next year. "The Webb is the
premier next-generation space observatory for exploring deep
space phenomena from distant galaxies to nearby planets and
stars," NASA said. "The telescope will provide clues about
the formation of the universe and the evolution of our own
solar system, from the first light after the Big Bang to the
formation of star systems capable of supporting life on
planets like Earth." The telescope is a joint project of NASA
and the European and Canadian Space Agencies.
Asteroid no threat for at least 100 years
PASADENA, Calif. - NASA says a near-Earth asteroid was imaged
by the Arecibo Radio Telescope in Puerto Rico and scientists
ruled out an Earth impact for at least 100 years. The space
agency said data involving asteroid 2005 YU55 were obtained
April 19-21 and allowed the Near-Earth Object Program Office
at NASA's Jet Propulsion Laboratory to refine the space
rock's orbit, ruling out any possibility of an Earth impact
for a century. The asteroid, approximately 1,300 feet in
size, was about 1.5 million miles from Earth when the image
was generated. Steve Chesley of JPL's Near-Earth Object
Program Office said prior to the Arecibo data, scientists
had eliminated nearly all upcoming Earth flybys as possibil-
ities of impact. "But there were a few that had a low
remaining probability of impact," Chesley said. "After incor-
porating the data from Arecibo, we were able to rule impacts
out entirely for the next 100 years." With future observa-
tions, scientists say they may be able to plot the asteroid's
orbit for an even longer period of time. NASA detects and
tracks asteroids and comets passing close to Earth using
both ground- and space-based telescopes. The Near-Earth
Object Observations Program, commonly called "Spaceguard,"
plots their orbits to determine if any could be potentially
hazardous to Earth. JPL manages the Near-Earth Object Pro-
gram Office for NASA's Science Mission Directorate.
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Scientists learn to 'knock out' worm genes
SALT LAKE CITY - Biologists at the University of Utah, which
helped pioneered the deletion of genes in lab animals, have
learned to "knock out" genes in nematode worms. University
biologists Erik Jorgensen, Christian Frokjaer-Jensen and
colleagues said the technique allows researchers to learn
what the function of specific genes. "We developed a method
that allows us to walk through the worm genome and determine
the function of each gene and thereby infer the function of
these genes in humans," said Jorgensen, a biology professor
and senior author of a study outlining the technique. "The
amazing thing is that cellular processes in a lowly worm are
similar to the biology in humans," said Frokjaer-Jensen, a
postdoctoral fellow and the study's first author. "We've
made it much easier and faster to change the genetic blue-
print of a simple worm so we can study and understand how
genes are regulated." Frokjaer-Jensen said it might be
possible to use the new method to study genes in other ani-
mals that serve as models for humans, including flatworms
and zebrafish. University of Utah biologists pioneered the
field, with Professor Mario Capecchi winning a Nobel Prize
for developing knockout mice and Professor Kent Golic finding
a way to cripple fruit fly genes. The study involving nema-
tode worms appears in the early online edition of the journal
Nature Methods.
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