Latest Io Stories

Better Understanding Of Marcellus Shale Could Inform Decisions On Hydrofracking
2014-07-22 03:54:03

The 1500 mile Appalachian mountain chain runs along a nearly straight line from Alabama to Newfoundland—except for a curious bend in Pennsylvania and New York State.

2014-07-18 12:22:03

DUBLIN, July 18, 2014 /PRNewswire/ -- Research and Markets has announced the addition of the

Van Allen Probes
2014-07-16 10:35:28

One of the great, unanswered questions for space weather scientists is just what creates two gigantic donuts of radiation surrounding Earth, called the Van Allen radiation belts.

2014-07-16 08:32:49

IO Customer Grows Data Center Capacity to Deliver High Availability, Secure Services PHOENIX, July 16, 2014 /PRNewswire/ -- IO, a worldwide leader in

jupiter impact
2014-07-16 07:16:48

Twenty years ago, human and robotic eyes observed the first recorded impact between cosmic bodies in the solar system, as fragments of comet Shoemaker-Levy 9 slammed into the atmosphere of Jupiter.

NASA's New Horizons Spacecraft Less Than A Year From Pluto Flyby
2014-07-15 09:44:15

NASA says the spacecraft New Horizons is only one year away from Pluto, slated to make an historic flyby on July 14, 2015 and give Earthlings never before seen images of the distant world.

Distant Earths May Need Balanced Friction Tides To Support Life
2014-07-10 12:52:42

Friction generates heat and NASA scientists have developed a computer model that shows that friction may help distant Earth-sized planets survive dangerous orbits.

Ganymede and Jupiter
2014-07-09 05:38:47

Jupiter's moon Ganymede, the largest satellite in our solar system, has two types of terrain on the surface: highly cratered dark regions comprising nearly 40 percent of the surface, with the rest being lightly grooved in intricate patterns.

NASA's STEREO Mission Being Prepped For Upcoming Orbital Phase
2014-07-04 10:27:41

NASA’s STEREO mission began in 2006 and has been providing scientists with images from the far side of the sun since February 2011. The spacecraft duo that were placed in orbit around the sun are now about to embark on the next phase of their mission.

NASA New Horizon Probe To Get Help From Hubble Space Telescope
2014-07-03 14:09:36

In 2006, NASA launched its New Horizons probe to explore the outer reaches of our Solar System and beyond. Fast forward eight years and the craft is now going to be getting a little direction with the help of the Hubble Space Telescope.

Latest Io Reference Libraries

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...

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...

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)...

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...

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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