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Berkeley’s
Alex Filippenko on
The Accelerating Universe
T wo research
teams who discovered that the expansion of the universe is
accelerating have scooped the $500,000 Gruber Cosmology
Prize for 2007. Saul Perlmutter, head of the Supernova
Cosmology Project, and Brian Schmidt, leader of the High-z
Supernova Search Team, received their prizes for a crazy
result that was at first hard to accept. Both teams reached
the following conclusion simultaneously: the expansion of
the universe is speeding up with time, the acceleration
being boosted by mysterious "dark
energy" having a negative pressure.
Great discoveries in the past decade have led to the
emergence of a consensus cosmology in which many of the
paradoxes of former times are resolved. In a nutshell, our
universe is spatially flat, has an age of 13.7 billion years
and comprises 4% baryonic matter, 23% non-baryonic dark
matter, and 73% dark energy. Strong and diverse...read•> |
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 Multiauthor
Papers Redux: A New Peek at New Peaks
After
appearing to level off earlier in this decade, the number of
papers with 50 or more coauthors reached new peaks in recent
years, with a notable spike in reports with at least 500
authors, according to a new Science Watch survey. |
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Cetuximab Boosts
Therapy
In Head and Neck Cancer |
Hot Research:
Eco-Impact of 2003
European Heat Wave |
Report on Ionic Liquids
Overflows with
Surprises |
Will Variant Gene
in Type 2 Diabetes
Fulfill Predictions? |
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The Research Services
Group
of Thomson Scientific.
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