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PULL · 26 JAN 2003

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The Lyman Alpha Forest

NASA APOD · J. Shalf, Y. Zhang (UIUC) et al., GCCC
COSMIC MESSAGE

We live in a universe filled with a 'Lyman-alpha forest' of hydrogen gas clouds. These clouds absorb light from distant quasars, leaving numerous absorption lines in their spectra. Distant quasars show more of these absorption clouds than nearby ones, indicating a denser 'thicket' of Lyman-alpha clouds earlier in the universe's history.

CREDIT
© COPYRIGHTED J. Shalf, Y. Zhang (UIUC) et al., GCCC · J. Shalf, Y. Zhang (UIUC) et al., GCCC · used by permission via NASA APOD · not for redistribution.
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The Lyman Alpha Forest
2003-01-26 · ♒
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The Lyman Alpha Forest
NASA APOD · J. Shalf, Y. Zhang (UIUC) et al., GCCC
BORN 8554 days ago
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ZODIAC CONTEXT
♒
AQUARIUS

In tropical astrology, 26 JAN 2003 falls under Aquarius (♒). The sign's window runs from 01-20 through 02-18. Aquarius is home to the Helix Nebula, the closest planetary nebula to Earth. The Sun was crossing this region of the sky on 26 JAN 2003.

THE ALMANAC FOR 26 JAN 2003
DAY
Sunday
MOON
Last quarter, 40% lit
POSITION
Day 26 of 365
SAME DAY, OTHER YEARS
NEARBY DATES