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Latest Dwarf planet Stories

2e74d15f6a3932ccf6243621d2983c551
2010-06-30 08:21:16

Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them and powered it off early on the morning of June 17, 2010. Reaction wheels spin to help a spacecraft maintain attitude control, and Dawn, which is exploring the asteroid belt, uses three wheels in normal operations. The three other reaction wheels are functioning normally. Mission managers said plans for Dawn to visit the asteroid Vesta in 2011 and...

2010-06-20 08:18:52

A large group of scientists, including Jay Pasachoff, Bryce Babcock, and Steven Souza at Williams College, reveal the character of one of the most distant objects in the solar system in a scientific paper which appeared in the June 17 issue of the journal Nature. In observing the object named 2002 TX300 on October 9, 2009, as it passed in front of a distant star, they could tell what its surface is like and its size. For several years, Pasachoff, Babcock, and Souza have worked with James...

e9432015ce20598de995da567a85817a1
2010-06-16 14:31:04

Occultation provided enough data to determine the KBO's size and albedo Until now, astronomers have used telescopes to find Kuiper Belt objects (KBOs), moon-sized bodies, and obtain their spectra to determine what types of ices are on their surface. They have also used thermal-imaging techniques to get a rough idea of the size of KBOs, but other details have been difficult to glean. While astronomers think there are about 70,000 KBOs that are larger than 100 kilometers in diameter, the...

36b91649a5259aa15d22d4f58dcaa10c1
2010-06-08 07:15:00

Deep in the heart of the asteroid belt, on its way to the first of the belt's two most massive inhabitants, NASA's ion-propelled Dawn spacecraft has eclipsed the record for velocity change produced by a spacecraft's engines. The previous standard-bearer for velocity change, NASA's Deep Space 1, also impelled by ion propulsion, was the first interplanetary spacecraft to use this technology. The Deep Space 1 record fell on Saturday, June 5, when the Dawn spacecraft's accumulated acceleration...

4d06b9985c0d40f5f128132f8c70f7a01
2010-05-05 06:35:00

"Standard orbit, Mr. Sulu." Captain Kirk barks out the order with such confidence. He knows the USS Enterprise can slip in and out of planetary orbits with ease. But it's only easy in the realm of science fiction. In the real world, such maneuvers have been impossible --until now. Enter Dawn, NASA's cutting edge mission to the asteroid belt. Powered with a futuristic sounding new technology called "ion propulsion," this spacecraft will perform space moves rivaling those of the Enterprise. At...

641209725bc691536e48145e09c10fa91
2010-04-16 13:13:29

Lonely Pluto floats in the darkness at the edge of our solar system. It's so far away even the Hubble Space Telescope has trouble making out the details. Nevertheless, Pluto is so interesting, even fuzzy images of the dwarf planet are compelling. A team of researchers led by Marc Buie of the Southwest Research Institute recently released the best Hubble images to date. The data reveal an icy molasses-colored world with a surprising amount of activity. Buie compared Hubble images taken in 1994...

2010-02-04 12:00:00

WASHINGTON, Feb. 4 /PRNewswire-USNewswire/ -- NASA has released the most detailed and dramatic images ever taken of the distant dwarf planet Pluto. The images from NASA's Hubble Space Telescope show an icy, mottled, dark molasses-colored world undergoing seasonal surface color and brightness changes. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Pluto has become significantly redder, while its illuminated northern hemisphere is getting brighter. These changes are most...

bae0c58c46c81b0e28630a1e4dc8e0341
2009-09-16 05:30:00

A dark red area discovered on dwarf planet Haumea appears to be richer in minerals and organic compounds than the surrounding icy surface. The discovery will be presented at the European Planetary Science Congress in Potsdam by Dr Pedro Lacerda on Wednesday September 16. The spot was discovered by measuring changes in its brightness as it rotates.  The origin of the spot is unknown, however its "light curve", which describes variations in its brightness over time, is not exactly the same...

2009-08-02 20:08:31

Pluto's lowered celestial status will probably stick at an upcoming meeting of astronomers in Rio de Janeiro, an American astronomer predicted Sunday. Pluto was reduced from a full-fledged planet -- the ninth in the Earth's solar system -- to dwarf planet at a meeting of the International Astronomical Union three years ago in Prague, Czech Republic. The Houston Chronicle reported Stephen Maran, co-author of the recent book Pluto Confidential, says politics may keep the only planet discovered...

2009-04-20 13:34:32

Astronomers using the U.S. space agency's Spitzer Space Telescope say they have discovered at least one in 100 white dwarf stars has orbiting asteroids. The international team of astronomers say their finding suggests the orbiting asteroids and rocky planets once hosted solar systems similar to our own. White dwarf stars are the compact, hot remnants of stars such as the sun. The new observations suggest such Earth-sized stars are often polluted by a gradual rain of closely orbiting dust that...


Latest Dwarf planet Reference Libraries

4_1d853520a4b7656168ecf3307480d70a2
2004-10-19 04:45:41

Uranus' moon Titania -- Titania is the largest moon of Uranus. Titania was discovered on January 11, 1787 by William Herschel. All of the moons of Uranus are named for characters from Shakespeare or Alexander Pope. Names for the first four discovered moons of Uranus, Oberon, Titania, Ariel and Umbriel, were given by John Herschel, the son of William. Titania was named after Titania, the Queen of the Faeries in A Midsummer Night's Dream. Titania is composed of roughly 50% water...

3_aaa6f0d4aeab03d9ae4d6b2e552621d02
2004-10-19 04:45:40

Brown Dwarf -- Brown dwarfs are a special type of low-mass star (approximately 13-70 Jupiter masses) that do not have nuclear fusion occurring in their cores during their time on the main sequence. Early in their development most brown dwarf stars do have lithium fusion in their cores, and a lack of lithium is a test for low-mass objects that are suspected of being brown dwarfs. Many brown dwarfs continue to glow in the red and infrared after their lithium is exhausted. This glow is...

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Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.