Light Eye
02-04-2006, 10:13 AM
dear friends,
http://www.astronomy.com/asy/default.aspx?c=a&id=3920
be well, be love.
david
is cosmic acceleration changing?
a new analysis shows that dark energy, the engine driving the universe's
speeding expansion, may be changing fast. cosmologists aren't buying it ? yet.
francis reddy
january 30, 2006
if it's possible to make a mystery more mysterious, then a study of dark
energy by astronomer bradley schaefer of louisiana state university in baton
rouge may have done so. earlier this month, at the american astronomical
society's 207th meeting in washington, schaefer reported that distant gamma-ray
bursts indicate dark energy's repulsive force is changing fast.
while cosmologists cast doubt on schaefer's experimental method, the study
underscores just how little scientists know about dark energy.
"cosmic acceleration is the biggest mystery in all of science," says
university of chicago cosmologist michael turner.
astronomers discovered dark energy 8 years ago, when analyses of distant
supernova explosions showed the universe's expansion is speeding up instead of
being slowed by gravity. "we have to get our heads and telescopes around that,"
turner says.
[non-text portions of this message have been removed]
http://www.astronomy.com/asy/default.aspx?c=a&id=3920
be well, be love.
david
is cosmic acceleration changing?
a new analysis shows that dark energy, the engine driving the universe's
speeding expansion, may be changing fast. cosmologists aren't buying it ? yet.
francis reddy
january 30, 2006
if it's possible to make a mystery more mysterious, then a study of dark
energy by astronomer bradley schaefer of louisiana state university in baton
rouge may have done so. earlier this month, at the american astronomical
society's 207th meeting in washington, schaefer reported that distant gamma-ray
bursts indicate dark energy's repulsive force is changing fast.
while cosmologists cast doubt on schaefer's experimental method, the study
underscores just how little scientists know about dark energy.
"cosmic acceleration is the biggest mystery in all of science," says
university of chicago cosmologist michael turner.
astronomers discovered dark energy 8 years ago, when analyses of distant
supernova explosions showed the universe's expansion is speeding up instead of
being slowed by gravity. "we have to get our heads and telescopes around that,"
turner says.
[non-text portions of this message have been removed]