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Space Station
Space station tracking map:
spaceflight.nasa.gov/realdata/tracking/index.html
Station Location: science.nasa.gov/temp/StationLoc.html Photo and over view of the space station: shuttlepresskit.com/ISS_OVR NASA human space flight: spaceflight.nasa.gov/home/index.html The space station is at an altitude of 221 miles and flying at 17,212 mph.
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Photos from Astronomy Picture of the Day
2002 April 22
Comet and Aurora Over Alaska
Credit & Copyright: Dennis Mammana (Skyscapes)
Explanation:
Can you spot the comet? Flowing across the frozen
Alaskan landscape is an
easily visible, colorful aurora. Just to the lower left, however, well in the
background, is something harder to spot:
Comet Ikeya-Zhang, the brightest comet of
recent years. Although the
aurora
faded in minutes, the
comet is just now
beginning to fade. It
remains just barely
visible without aid,
however, before sunrise in the East. The comet is actually a giant
dirt-covered snowball that spends most of its
time in the outer
Solar System -- to where it is now returns. The
above photograph was
taken on March 20 when
Comet Ikeya-Zhang was near its brightest.
Careful inspection of the photo will uncover several other sky delights,
including the giant galaxy
M31.
2002 July 26
Clearing Skies
Explanation: Clear evening skies are a welcome sight for
stargazers worldwide, but clearing skies are
good too. Just such a glorious occasion was recorded in this dramatic
photo taken by
Dominic Cantin during a recent gathering of
Canadian astronomers at
St-Nérée Observatory,
located about 60 kilometers southeast of the city of Quebec. Looking toward the
west on
July 13th, the exposure
captured a distant
lightning flash from a
passing thunderstorm at the far left. On the right, the storm clouds' retreat
has uncovered an overexposed
crescent Moon sharing the evening twilight with
bright
Venus only a few degrees
away (below and far right). In the darkening sky above the young Moon is a
familiar right triangle of stars in the
constellation Leo. Cantin
reports that clear skies followed, all night long.
2006 January 29
Volcano and Aurora in
Iceland
Explanation: Sometimes both heaven
and Earth erupt. In
Iceland in 1991, the
volcano Hekla erupted at the same time that
auroras were
visible
overhead.
Hekla, one of the most
famous volcanoes in the
world, has
erupted at least 20 times
over the past millennium, sometimes causing
great destruction. The
last eruption occurred
only six years ago but caused only minor damage. The
green auroral band occurred
fortuitously about 100
kilometers above the erupting
lava. Is
Earth
the Solar System's only planet with both
auroras and
volcanos?
Last Update 12-19-6
