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Астронет: Астрономическая картинка дня Два миллиарда лет после Большого Взрыва http://variable-stars.ru/db/msg/1161631/eng |
Credit & Copyright: S. Pascarelle
(Arizona State U.)
Explanation:
What did the
universe look like two billion years after the
Big Bang?
According to
this computer model,
the universe was filled with irregular looking objects like the ones shown above.
The simulation then predicts that these blobs of stars and gas collide to form galaxies
more similar to the ones we see today. In fact, this simulation bears much resemblance
to
recent pictures of distant galaxies taken by the
Hubble Space Telescope.
Galaxy formation
is a complex phenomena which only now is becoming understood. Did most galaxies
form 5 billion years ago - or 10 billion? Did galaxies fragment from larger sheets
of matter, or are they conglomerations of many smaller clumps? Simulations like
this one are helping to determine the answer.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.