Dark Energy

[kullatiro]

penampakan Dark energy (energi hitam) yang misterius.


Cosmic Lens Used to Probe Dark Energy for First Time

PASADENA, Calif. -- Astronomers have devised a new method for measuring perhaps the greatest puzzle of our universe -- dark energy. This mysterious force, discovered in 1998, is pushing our universe apart at ever-increasing speeds.

For the first time, astronomers using NASA's Hubble Space Telescope were able to take advantage of a giant magnifying lens in space -- a massive cluster of galaxies -- to narrow in on the nature of dark energy. Their calculations, when combined with data from other methods, significantly increase the accuracy of dark energy measurements. This may eventually lead to an explanation of what the elusive phenomenon really is.


http://www.jpl.nasa.gov/news/news.cfm?release=2010-272

The team measured the properties of the gravitational lensing in the galaxy cluster Abell 1689. Gravitational lensing is a phenomenon predicted by Einstein's theory of general relativity
http://www.sciencedaily.com/releases/2010/08/100819141917.htm

[johan3000]

kalau black hole termasuk dalam dark energy gak?

black hole kan gak bisa dilihat, karna menyesot semua cahaya. Tapi manusia pinter.... mengamatin kalau ada sekelompok bintang yg hilang (baca : terlelan black hole)... nah disitu tempatnya black hole...

 

[kullatiro]

kalau black hole rasanya itu gravitasi bintang dah jadi nya nanti bintang putih yang cebol itu

[Jerry]

kalau black hole termasuk dalam dark energy gak?

black hole kan gak bisa dilihat, karna menyesot semua cahaya. Tapi manusia pinter.... mengamatin kalau ada sekelompok bintang yg hilang (baca : terlelan black hole)... nah disitu tempatnya black hole...

 

Blackhole TIDAK benar-benar BLACK.