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Latest Io Stories

VolcanoesOn Io Are In The Wrong Place
2013-04-05 04:58:56

April Flowers for redOrbit.com - Your Universe Online With hundreds of volcanoes, some erupting lava fountains up to 250 miles high, Jupiter's moon Io is the most volcanically active world in our Solar System. According to NASA and European Space Agency (ESA) researchers, though, concentrations of volcanic activity are significantly displaced from where they are expected to be based on models used to predict how the moon's interior is heated. The team, which included scientists from...

Unmanned Aircraft Used To Help Study Volcanic Plumes
2013-04-02 05:11:35

April Flowers for redOrbit.com - Your Universe Online Last month, Earth science researchers from NASA traveled to Turrialba Volcano near San Jose, Costa Rica. The research team was there to study the chemical environment of the volcano by flying a Dragon Eye unmanned aerial vehicle (UAV) into the sulfur dioxide plume and over its summit crater. The UAV — a small electric aircraft equipped with cameras and sensors — will help the scientists improve the remote-sensing...

Model Shows How Carbon Escapes From Deep Earth To Surface
2013-03-19 11:46:54

redOrbit Staff & Wire Reports - Your Universe Online Computer simulations of water under extreme pressure reveals how carbon might one day be recycled from hundreds of miles below the surface of the Earth, according to researchers at the University of California, Davis and Johns Hopkins University. The cycling of carbon through the oceans, the atmosphere and the shallow crust of the Earth has been intensively studied, but relatively little is known about what happens to carbon deep...

2013-03-19 09:57:55

On March 17, 2013, MESSENGER successfully completed its year-long first extended mission in orbit about Mercury, building on the groundbreaking scientific results from its earlier primary mission. Today the team is poised to embark on a second extended mission that promises to provide new observations of Mercury's surface and interior at unprecedented spatial resolution and of the planet's dynamic magnetosphere and exosphere at high time resolution during the peak and declining phase of the...

Inner Earth Could Have Caused Ancient Climate Change
2013-03-18 19:47:05

Lee Rannals for redOrbit.com — Your Universe Online Researchers wrote in a newspaper published by the American Geophysical Union that Earth's interior cycles have contributed to long-term sea-level rises and climate change. New York University and Ottawa's Carleton University scientists say activity below the earth's surface has played a role before in ancient rises in sea levels and global warming. Although it may seem like welcoming news for climate change skeptics, the authors...

Jupiter’s Hot Spots Move Like A Merry-Go-Round
2013-03-15 12:25:30

Watch the video “Jupiter´s Hot Spots” Brett Smith for redOrbit.com - Your Universe Online Planetary scientists at NASA have found that a weather phenomenon also found in Earth´s atmosphere is responsible for the activity of so-called ℠hot spots´ slightly bigger than North America drifting across Jupiter´s atmosphere. Using images taken by NASA's Cassini spacecraft as it passed Jupiter en route to Saturn, scientists have determined that hot...

Window Into Europa’s Ocean Opened By Astronomers
2013-03-05 10:28:13

W. M. Keck Observatory With data collected from the mighty W. M. Keck Observatory, California Institute of Technology (Caltech) astronomer Mike Brown – known as the Pluto killer for discovering a Kuiper-belt object that led to the demotion of Pluto from planetary status – and Kevin Hand from the Jet Propulsion Laboratory (JPL) have found the strongest evidence yet that salty water from the vast liquid ocean beneath Europa´s frozen exterior actually makes its way to the...

Space Dust Likely Culprit Behind Fallen Satellites
2013-02-27 12:00:13

Lee Rannals for redOrbit.com - Your Universe Online According to an aeronautics and astronautics professor at Stanford University, "space dust" is the likely culprit behind why satellites fail. Satellites are threatened by both asteroids and "space junk," which are particles of man-made debris that orbit Earth. However, the threat from these impacts is actually relatively low, and most satellites that have died in space were knocked out by something entirely different. Space dust,...


Latest Io Reference Libraries

9_4e0ee555c18ad7f31f4e1417f556ae6a2
2004-10-19 04:45:44

Satellite -- A satellite is an object that orbits another object. With sufficient tangential velocity, the object does not collide with the primary object it orbits, but maintains a distance from that object as the rate at which it falls towards that object is similar to the rate that it travels away, thus the object orbits the primary object and becomes a satellite. In other words: gravitational force serves as the centripetal force needed to make the object circle the primary...

9_5c04e476a527b2fbd3e32c57addd63822
2004-10-19 04:45:44

Galileo Probe -- The Galileo probe was an unmanned probe sent by NASA to study the planet Jupiter and its moons. Named after the astronomer Galileo Galilei, it was launched on October 18 1989 by the Space Shuttle Atlantis and arrived at Jupiter on December 7 1995. Galileo's launch had been significantly delayed by the hiatus in Space Shuttle launches that occurred after the Space Shuttle Challenger disaster, and new safety protocols that were implemented as a result forced Galileo to use...

4_fc730703fb1423212704a9ca14d177942
2004-10-19 04:45:40

Jupiter's Moon Leda -- Leda ("LEE duh") is the ninth of Jupiter's known satellites and the smallest. Discovered by C. Kowal Date of discovery 1974 Mass (kg) 5.68e+15 Mass (Earth = 1) 9.5047e-10 Equatorial radius (km) 8 Equatorial radius (Earth = 1) 1.2543e-03 Mean density (gm/cm^3) 2.7 Mean distance from Jupiter (km) 11,094,000 Rotational period (days) ? Orbital period (days) 238.72 Mean orbital velocity (km/sec) 3.38 Orbital eccentricity 0.1476 Orbital inclination (degrees)...

4_a34505fa4e67ac355472742562cbda502
2004-10-19 04:45:40

Jupiter's Moon Callisto -- With a diameter of over 4,800 km (2,985 miles), Callisto is the third largest satellite in the solar system and is almost the size of Mercury. Callisto is the outermost of the Galilean satellites, and orbits beyonds Jupiter's main radiation belts. It has the lowest density of the Galilean satellites (1.86 grams/cubic centimeter). Its interior is probably similar to Ganymede except the inner rocky core is smaller, and this core is surrounded by a large icy...

4_aaa5179a0f2215133d1a720eb259e07f2
2004-10-19 04:45:40

Jupiter's Moon Ganymede -- Ganymede is the largest satellite in the solar system with a diameter of 5,268 km (3270 miles). It is larger than Mercury and Pluto, and three-quarters the size of Mars. If Ganymede orbited the Sun instead of orbiting Jupiter, it would easily be classified as a planet. If Ganymede orbited the Sun instead of Jupiter it could be classified as a planet. Like Callisto, Ganymede is most likely composed of a rocky core with a water/ice mantle and a crust of rock and...

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Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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