Astronomy

With diameter of 941 km, Asteroid 1 Ceres is the largest asteroid at the asteroid belt. Discovered by Italian astronomer, Giuseppe Piazzi, on January 1, 1801, Ceres is also the first asteroid to be discovered. On the other side, record as the smallest asteroid holds by 1993KA2. The asteroid that discovered on 1993 is only […]

Popularity: 37%

Traditionally, stars and planets are differentiated based on two properties:
(i) Whether or not they undergo nuclear reactions that burn hydrogen in their cores. Stars do this; planets don’t. In order to have high enough temperatures in the core to burn hydrogen, an object needs to have a mass of at least 75 or so […]

Popularity: 53%

New higher-resolution lunar imagery and maps that include NASA multimedia content now are available on the Google Moon Web site. Updates include new content from the Apollo missions, including dozens of embedded panoramic images, links to audio clips and videos, and descriptions of the astronauts’ activities during the missions. The new content is overlaid on […]

Popularity: 31%

The sun will reach point of Autumnal Equinox (fall equinox) at September 23, 2007, 09.51 UT. At the autumnal equinox, the sun appears to cross the celestial equator, from north to south. This event marks the beginning of autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
In the language of science, an equinox […]

Popularity: 67%

This pidture shows two spiral galaxies pass by each other in the direction of the constellation Canis Major. The near-collision has been caught in images taken by NASA’s Hubble Space Telescope and its Wide Field Planetary Camera 2 on February, 2004.
The larger and more massive galaxy is cataloged as NGC 2207 (on the left in […]

Popularity: 24%

Until now, images from ground-based telescopes have been invariably blurred by earth’s atmosphere. Astronomers have developed a technique, known as adaptive optics (AO), to correct the blurring, but so far it has only worked succesfully in the infrared, where the smearing is greatly reduced. However, a new noise-free, high-speed camera has been developed at the […]

Popularity: 36%

After August 28th moon eclipse, we’re now facing next eclipse: Partial solar eclipse, which takes place on September 11 2007. As the last eclipse at 2007, this eclipse can be seen on parts of South America, Antarctica and the South Atlantic.
This event is the sixth partial eclipse of Saros series 154. After one more partial […]

Popularity: 100%

Astronomer uses genitive forms of the names of constellations, preceded by a Greek letter, to designate about 1300 bright stars. The system was introduded by Johannes Bayer around the year 1600 to name the brighter stars. The basic rule was to name them in order of brightness, but the rule is more often violated than […]

Popularity: 32%

The oldest known drawings of constellations are motifs on seals, vases, and gaming boards from the Sumerians, indicating that constellations may have been developed as early as 4000 BC. The constellation Aquarius was named by the Sumerians after their god of heaven An, who pours the waters of immortality upon the earth. The division of […]

Popularity: 59%