|
Astronomy Picture Of the Day (APOD)
The International Space Station from Orbit
16.08.2005
The International Space Station (ISS) is the largest human-made object ever to orbit the Earth. Late last month and earlier this month, the station was visited and resupplied by space shuttle Discovery. The ISS is currently operated by the Expedition 11 crew, consisting a Russian and an American astronaut.
Perseid Meteors and the Milky Way
15.08.2005
Where will the next Perseid meteor appear? Sky enthusiasts who trekked outside for the Perseid meteor shower that peaked over the past few days typically had this question on their mind. The above movie, where the time-line has been digitally altered, captures part of that very mystery.
Heating Coronal Loops
14.08.2005
Why is the corona of the Sun so hot? Extending above the photosphere or visible surface of the Sun, the faint, tenuous solar corona can't be easily seen from Earth, but it is measured to be hundreds of times hotter than the photosphere itself.
SNR 0103 72.6: Oxygen Supply
13.08.2005
A supernova explosion, a massive star's inevitable and spectacular demise, blasts back into space debris enriched in the heavy elements forged in its stellar core. Incorporated into future stars and planets, these are the elements ultimately necessary for life. Seen here in a false-color x-ray image, supernova remnant SNR 0103-72
A Meteor Shower Fireball Movie
12.08.2005
Go outside tonight and see a celestial light show -- the later the better. Tonight is the peak of the month-long Perseid Meteor Shower. Although visible every year at this time, the Perseids are expected to appear particularly active this year due to the relative absence of glare from the Moon during the peak.
Young Suns of NGC 7129
11.08.2005
Young suns still lie within dusty NGC 7129, some 3,000 light-years away toward the royal constellation Cepheus. While these stars are at a relatively tender age, only about a million years old, it is likely that our own Sun formed in a similar stellar nursery some five billion years ago.
The Heart and Soul Nebulas
10.08.2005
Is the heart and soul of our Galaxy located in Cassiopeia? Possibly not, but that is where two bright emission nebulas nicknamed Heart and Soul can be found. The Heart Nebula, officially dubbed IC 1805 and visible above on the right, has a shape reminiscent of a classical heart symbol.
The Belt of Venus over Elwood Beach
9.08.2005
Although you've surely seen it, you might not have noticed it. During a cloudless twilight, just before sunrise or after sunset, part of the atmosphere above the horizon appears slightly off-color, slightly pink.
Mars to Appear Normal this August
8.08.2005
Will Mars appear extremely close and bright later this month? No. Regardless of numerous urban legends circulating, Mars will a relatively normal August. October is the best month to see Mars this year. The red planet is now visible in the morning before sunrise.
Dueling Auroras
7.08.2005
Will it be curtains for one of these auroras? A quick inspection indicates that it is curtains for both, as the designation "curtains" well categorizes the type of aurora pattern pictured. Another (informal) type is the corona.
|
January February March April May June July August September October November December |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||