Astronomy Picture of the Day

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#50830 by @ 30.09.2004 00:00 - nach oben -
HUDF: Dawn of the Galaxies

When did galaxies form?

Faint red smudges identified on the
deepest optical sky image
ever taken may well be members of the first class of galaxies.

Detailed inspection of the
Hubble Ultra Deep Field (HUDF), taken by the
Advanced Camera for Surveys
on the
Hubble Space Telescope,
found the galaxies, circled above, and used their distance and abundance to
probe the universe
when it was only a few percent of its present age.

Analyses indicate that the discovered class of galaxies is exclusively composed of these smaller
dwarf galaxies from which larger
modern galaxies must have formed.

Some large modern galaxies make a colorful foreground to the above

The first class of dwarf galaxies likely contained
energetic stars emitting light that
transformed much of the remaining
normal matter in the universe from a cold gas to a hot
ionized plasma.

Credit & Copyright
#50849 by @ 30.09.2004 09:22 - nach oben -
isch da öpä nöd dä magä inhalt vum sonic sinerä mueter ?
#50863 by @ 30.09.2004 09:55 - nach oben -
nai da isch eidütig en konfetti-bastelboge. muesch eifach usdrucke und di chline kreisli usschniide. voila, du hesch konfetti...
#50950 by @ 30.09.2004 18:00 - nach oben -
jetzt ziehts langsam