Credit & Copyright: Ruslan Merzlyakov
(RMS Photography)
Explanation:
Transfusing sunlight
through a darkened sky,
this
beautiful display
of noctilucent clouds
was captured earlier this week,
reflected in calm waters from Nykobing Mors, Denmark.
From the edge of space, about 80 kilometers above Earth's surface, the
icy clouds
themselves still reflect sunlight, though the Sun is below the
horizon as seen from the ground.
Usually spotted at high latitudes in summer months
the night shining clouds have made an early
appearance
this year
as northern nights grow short.
Also known as polar mesopheric clouds they
are understood to form
as water vapor driven into the cold
upper atmosphere condenses on the fine dust particles supplied by
disintegrating meteors or volcanic ash.
NASA's AIM mission provides
daily projections of noctilucent clouds
as
seen from space.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
Serebristye oblaka - noctilucent clouds
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