Astronomy

Bad Astronomy: “That’s as remote as the dark side of the Moon!”
Good astronomy: “That’s as remote as the far side of the Moon!”
Quoted from badastronomy.com:
At the end of the album “Dark Side of the Moon” by Pink Floyd, there is a voiceover that actually says “There is no dark side of the moon. As […]

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This picture shows an object known as I Zwicky 18, a dwarf irregular galaxy that first identified by Swiss astronomer Fritz Zwicky in a 1930s photographic survey of galaxies. Observations of this object at the Palomar Observatory around 40 years ago seemed to show that it was one of the youngest galaxies in the nearby […]

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For a fifth time, again NASA extending the activities of its two Mars Exploration Rovers, Spirit and Opportunity. According to NASA’s press release dated October 15, 2007, the decision keeps the trailblazing mobile robotic pioneers active on opposite sides of Mars, possibly through 2009. This extended mission and the associated science are dependent upon the […]

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The above picture is a new radar image from Cassini spacecraft, comprised from seven fly-bys on Saturn’s largest moon, Titan, over the last year and a half. This picture shows a north pole pitted with giant lakes and seas, at least one of them larger than Lake Superior in the USA, the largest freshwater lake […]

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There is famous paradox in astronomy and cosmology: If this universe has unlimited broadness, we ought to will see the star in every sky corner, and thereby the whole skies should be bright. Then, why is dark area among the stars?
This paradox is conceived as the Olbers’ paradox, named after German astronomer and physics, Wilhelm […]

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The above Image shows Jupiter’s moon, Io, as seen by the New Horizons spacecraft. A plume from a huge volcanic eruption can be seen at the north pole of the moon. Io is the most geologically active body in the solar system. New Horizons’ cameras captured pockets of bright, glowing lava scattered across the surface; […]

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This newly released image from NASA’s Hubble Space Telescope shows thousands of sparkling young stars nestled within the giant nebula NGC 3603, surrounded by a vast region of dust and gas. This stellar “jewel box” is one of the most massive young star clusters in the Milky Way Galaxy. NGC 3603 is a prominent star-forming […]

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A Cepheid variable star is class of variable stars that brighten and dim in an extremely regular fashion. The periods of the fluctuations (the time to complete one cycle from bright to dim and back to bright) last several days, although they range from 1 to 50 days.
These stars are important because the period […]

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