|
Astronomy Picture Of the Day (APOD)
The Sun in Three Dimensions
24.04.2007
What does the Sun look like in all three spatial dimensions? To find out, NASA launched two STEREO satellites to perceive three dimensions on the Sun much like two eyes allow humans to perceive three dimensions on the Earth.
A Supply Ship Approaches the Space Station
23.04.2007
Looking out a window of the International Space Station brings breathtaking views. Visible vistas include a vast and colorful Earth, a deep dark sky, and an occasional spaceship sent to visit the station. Visible on September 20 of last year was a Soyuz TMA-9 spacecraft carrying not only supplies but also three new astronauts.
Smooth Sections on Asteroid Itokawa
22.04.2007
Why are parts of this asteroid's surface so smooth? No one is yet sure, but it may have to do with the dynamics of an asteroid that is a loose pile of rubble rather than a solid rock.
3D Face on Mars
21.04.2007
Get out your red/blue glasses and gaze down on this weathered mesa on Mars. Of course, described as a rock formation which resembles a human head in a 1976 NASA press release, this mesa is also famous as the Face on Mars.
Pantheon Earth and Moon
20.04.2007
Could this be a picture of the Earth and Moon from space? It certainly looks like it at first glance, with a dark, cratered Moon standing off from planet Earth's lovely blue disk surrounded by a nurturing atmosphere. In fact, this view looks up into the dome of the ancient Pantheon in Rome.
NGC 5139: Omega Centauri
19.04.2007
Centaurus is one of the most striking constellations in the southern sky. The Milky Way flows through this celestial expanse whose wonders also include the closest star system to the Sun, Alpha Centauri, and the largest globular star cluster in our galaxy, Omega Centauri (aka NGC 5139).
Barred Spiral Galaxy NGC 1672
18.04.2007
Many spiral galaxies have bars across their centers. Even our own Milky Way Galaxy is thought to have a modest central bar. Prominently barred spiral galaxy NGC 1672, pictured above, was captured in spectacular detail in this recently released image taken by the orbiting Hubble Space Telescope.
Water Claimed in Evaporating Planet HD 209458b
17.04.2007
Planet HD 209458b is evaporating. It is so close to its parent star that its heated atmosphere is simply expanding away into space. Some astronomers studying this distant planetary system now believe they have detected water vapor among the gases being liberated.
MWC 922: The Red Square Nebula
16.04.2007
What could cause a nebula to appear square? No one is quite sure. The hot star system known as MWC 922, however, appears to be imbedded in a nebula with just such a shape. The above image combines infrared exposures from the Hale Telescope on Mt.
M3: Inconstant Star Cluster
15.04.2007
Star clusters appear constant because photographs of them are frozen in time. In reality, though, cluster stars swarm the center and frequently fluctuate in brightness. Although the time it takes for stars to cross...
|
January February March April May June July August September October November December |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||