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Latest Planemos Stories

mercury Kandinsky crater
2014-10-17 03:00:32

NASA's MESSENGER spacecraft has provided the first optical images of ice and other frozen volatile materials within permanently shadowed craters near Mercury's north pole.

Kuiper Belt object
2014-10-16 05:54:06

Three new Kuiper Belt objects that could possibly be visited by the New Horizons spacecraft have been uncovered by the Hubble Space Telescope.

2014-10-02 08:20:38

Satelles, a division of iKare Corporation, is pleased to announce today that Richard Perry has joined the company's board of directors. REDWOOD CITY, Calif., Oct.

titan southern polar vortex
2014-10-02 06:30:31

Analysis of data collected by NASA’s Cassini mission has revealed the presence of a large, cold, toxic cloud swirling above the south pole of Saturn’s moon Titan, according to research published in the October 2 edition of the journal Nature.

moon outline
2014-10-02 04:53:01

Analysis of a massive rectangular feature buried just below the lunar surface by NASA’s GRAIL spacecraft has revealed that the giant basin on the moon’s near side was likely created by ancient lava flows and not a massive asteroid collision.

converted PNM file
2014-09-30 05:09:22

NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a large hydrocarbon sea on Saturn's moon Titan. The feature covers an area of about 100 square miles (260 square kilometers) in Ligeia Mare, one of the largest seas on Titan.

2014-09-08 12:21:15

WASHINGTON, Sept. 8, 2014 /PRNewswire-USNewswire/ -- Scientists have found evidence of plate tectonics on Jupiter's moon Europa.

plate tectonics on Europa
2014-09-08 12:06:43

Scientists have found evidence of plate tectonics on Jupiter's moon Europa. This indicates the first sign of this type of surface-shifting geological activity on a world other than Earth.

Voyager 2 Triton Map
2014-08-24 04:35:17

In honor of the 25th anniversary of Voyager 2’s first up-close look at Neptune and Triton, NASA has “restored” footage obtained by the probe and used it to construct the highest-quality global color map of the moon to date.


Latest Planemos Reference Libraries

4_d525afa47eb1598771cf4d0a9855c4d32
2004-10-19 04:45:41

Planet Pluto -- Pluto is the ninth and smallest planet of our solar system. It was discovered by the astronomer Clyde Tombaugh at the Lowell Observatory in Arizona on February 18, 1930 (although the body was first photographed on March 19, 1915). Tombaugh was searching for a "Planet X" to explain the orbit of Neptune; further analysis, with seven decades more data about Neptune's position, has resolved the perceived anomaly without need for an additional gravitational pull on Neptune....

4_131c677fc8e51de37052e5e410fd9c8b2
2004-10-19 04:45:41

Uranus -- Uranus is the seventh planet from the sun. It is a gas giant. Physical characteristics Uranus is composed primarily of rock and various ices, with only about 15% hydrogen and a little helium (in contrast to Jupiter and Saturn which are mostly hydrogen). Uranus (and Neptune) are in many ways similar to the cores of Jupiter and Saturn minus the massive liquid metallic hydrogen envelope. It appears that Uranus does not have a rocky core like Jupiter and Saturn but rather...

Saturn's Moon Hyperion
2004-10-19 04:45:41

Saturn's moon Hyperion -- Hyperion is a moon of Saturn discovered by Bond and Lassell in 1848. It is the largest highly irregular (non-spherical) body in the solar system (Proteus is quite a bit larger but is almost spherical). It seems likely that Hyperion is a fragment of a larger body that was broken by a large impact in the distant past. The largest crater on its surface is approximately 120 kilometers in diameter and 10 kilometers deep. Like most of Saturn's moons, Hyperion's low...

Saturn's Moon Titan
2004-10-19 04:45:41

Saturn's moon Titan -- Titan is the planet Saturn's largest moon. It is larger than either of the planets Mercury or Pluto and is the second-largest moon in the solar system after Ganymede (it was originally thought to be slightly larger than Ganymede, but recent observations have shown that its thick atmosphere caused overestimation of its diameter). Titan was discovered on March 25, 1655 by the Dutch astronomer Christian Huygens, making it one of the first non-terrestrial moons to be...

Jupiter's Moon Europa
2004-10-19 04:45:40

Jupiter's Moon Europa -- Europa is a puzzle. The sixth largest moon in our Solar System, Europa confounds and intrigues scientists. Few bodies in the Solar System have attracted as much scientific attention as this moon of Jupiter because of its possible subsurface ocean of water. The more we learn about this icy moon, the more questions we have. Because the nature of science is to ask questions, we cannot resist the mystery of Europa and its potential for possessing an ocean. Early...

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Word of the Day
swell-mobsman
  • A member of the swell-mob; a genteelly clad pickpocket. Sometimes mobsman.
Use of the word 'swell-mobsman' dates at least to the early 1800s.