Latest Io Stories
NASA's not sending violins and trumpets out to space. These scientific instruments will be used to determine if life could exist on Europa. Cross your fingers!
WASHINGTON, May 26, 2015 /PRNewswire-USNewswire/ -- NASA has selected nine science instruments for a mission to Jupiter's moon Europa, to investigate whether the mysterious icy moon could harbor
WASHINGTON, May 15, 2015 /PRNewswire-USNewswire/ -- NASA has opened media accreditation for the New Horizons spacecraft's historic encounter with Pluto in mid-July.
WASHINGTON, May 12, 2015 /PRNewswire-USNewswire/ -- NASA laboratory experiments suggest the dark material coating some geological features of Jupiter's moon Europa is likely sea salt from a
A newly-released image of Europa captured by NASA’s Galileo spacecraft shows a portion of the Jovian moon’s crust known as Conamara Chaos that is marked by long grooves etched into its shattered chunks of ice and which criss-cross along the surface.
Researchers have for the first time captured detailed images of heat rising from the horseshoe-shaped lava lake on Io, the innermost moon of Jupiter. Cool!
After several years of service studying Mercury, the closest planet to the sun, the NASA MESSENGER spacecraft has run out of fuel and will fall to Mercury’s surface this afternoon, sometime around 3:30pm EDT, officials from the US space agency have confirmed.
New images captured by NASA’s New Horizons spacecraft have revealed a bright feature near the visible pole of the dwarf planet Pluto – a feature that could be a polar cap made out of frozen molecular nitrogen ice, officials from the US space agency announced on Wednesday.
WASHINGTON, April 29, 2015 /PRNewswire-USNewswire/ -- For the first time, images from NASA's New Horizons spacecraft are revealing bright and dark regions on the surface of faraway Pluto - the
If this image gives you the heebie jeebies, you might not want to wait around for New Horizons to get a good look at the spider-like patterns on Pluto.
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...
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...
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)...
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...
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...
- To befool; deceive; balk; jilt.
- An illusion; a trick; a cheat.