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Εργαλεία Θεμάτων Αξιολόγηση: Αξιολόγηση θέματος: 4 Ψήφοι, 5,00 κατά μέσο όρο. Τρόποι εμφάνισης
  #1  
Παλιά 06-11-07, 14:46
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Τελευταία φορά Online: 12-11-16 10:12
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Η διαστημική φωτογραφία της ημέρας

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Τελευταία επεξεργασία από το χρήστη pazo : 06-11-07 στις 20:46
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The Following 8 Users Say Thank You to Xenios For This Useful Post:
CORSAIR (01-08-11), Easty (24-11-16), fifisrikos (09-08-14), globalklima (19-04-10), Μηδεν_ενα (18-09-10), maralin (05-02-11), Nikoscot (18-11-10), TASOS131313 (16-04-12)
  #2  
Παλιά 23-07-17, 09:17
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Τελευταία φορά Online: Σήμερα 14:38
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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

23 July 2017



Mercury as Revealed by MESSENGER

Image Credit: MESSENGER, NASA, JHU APL, CIW

Explanation: Mercury had never been seen like this before. In 2008, the robotic MESSENGER spacecraft buzzed past Mercury for the second time and imaged terrain mapped previously only by comparatively crude radar. The featured image was recorded as MESSENGER looked back 90 minutes after passing, from an altitude of about 27,000 kilometers. Visible in the image, among many other newly imaged features, are unusually long rays that appear to run like meridians of longitude out from a young crater near the northern limb. MESSENGER entered orbit around Mercury in 2011 and finished its primary mission in 2012, but took detailed measurements until 2015, at which time it ran out of fuel and so was instructed to impact Mercury's surface.

Tomorrow's picture: hybrid eclipse

ΠΗΓΗ: http://apod.nasa.gov/apod/astropix.html
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  #3  
Παλιά 24-07-17, 09:35
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Τελευταία φορά Online: Σήμερα 14:38
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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

24 July 2017



A Hybrid Solar Eclipse over Kenya

Image Credit & Copyright: Eugen Kamenew (Kamenew Photography)

Explanation: Chasing solar eclipses can cause you to go to the most interesting places and meet the most interesting people. Almost. For example, chasing this eclipse brought this astrophotographer to Kenya in 2013. His contact, a member of the Maasai people, was to pick him up at the airport, show him part of southern Kenya, and even agreed to pose in traditional warrior garb on a hill as the hopefully spectacular eclipse set far in background. Unfortunately, this contact person died unexpectedly a week before the astrophotographer's arrival, and so he never got to participate in the shoot, nor know that the resulting image went on to win an international award for astrophotography. Pictured in 2013 from Kenya, the Moon covers much of the Sun during a hybrid eclipse, a rare type of solar eclipse that appears as total from some Earth locations, but annular in others. During the annular part of the eclipse, the Moon was too far from the Earth to block the entire Sun. Next month a total solar eclipse will cross the USA.

Tomorrow's picture: astronaut's floating friend

ΠΗΓΗ: http://apod.nasa.gov/apod/astropix.html
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  #4  
Παλιά 25-07-17, 09:05
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Τελευταία φορά Online: Σήμερα 14:38
Φύλο: Άντρας
Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

25 July 2017



Int-Ball Drone Activated on the Space Station

Image Credit: JAXA, ISS, NASA

Explanation: What if you were followed around by a cute floating ball that kept taking your picture? Then you might be an astronaut on today's International Space Station (ISS). Designed by the Japan Aerospace Exploration Agency (JAXA), the JEM Internal Ball Camera -- informally "Int-Ball" -- is a bit larger than a softball, can float and maneuver by itself but also be controlled remotely, can take high resolution images and videos, and is not related to Hello Kitty. Int-Ball was delivered to the ISS in early June and is designed to allow ground-control to increase the monitoring of ISS equipment and activities while decreasing time demands on human astronauts. Int-Ball moves by turning on small internal fans and sees with a camera located between its two dark eyes.

Tomorrow's picture: milky way towers

ΠΗΓΗ: http://apod.nasa.gov/apod/astropix.html
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  #5  
Παλιά Σήμερα, 08:45
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Τελευταία φορά Online: Σήμερα 14:38
Φύλο: Άντρας
Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

27 July 2017



A Sagittarius Triplet

Image Credit & Copyright: Josep Drudis

Explanation: These three bright nebulae are often featured on telescopic tours of the constellation Sagittarius and the crowded starfields of the central Milky Way. In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the large nebula above and left of center, and colorful M20 near the bottom of the frame. The third emission region includes NGC 6559, right of M8 and separated from the larger nebula by a dark dust lane. All three are stellar nurseries about five thousand light-years or so distant. Over a hundred light-years across the expansive M8 is also known as the Lagoon Nebula. M20's popular moniker is the Trifid. Glowing hydrogen gas creates the dominant red color of the emission nebulae. In striking contrast, blue hues in the Trifid are due to dust reflected starlight. The colorful composite skyscape was recorded with two different telescopes to capture a widefield image of the area and individual close-ups at higher resolution.

Tomorrow's picture: noodling around

ΠΗΓΗ: http://apod.nasa.gov/apod/astropix.html
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