A ringside seat to see Saturn and her moons
Stunning images of Saturn and its moons were taken by the Cassini
space probe which, for the first time in two years, has been able to get
a good view of the planet's famous rings owing to a recent change in the
spacecraft's angle of orbit. It took seven years for Cassini to travel
the two billion miles to Saturn.
Since arriving in 2004, the probe has been surveying the gas giant
from the advantage of its elaborate elliptical orbits. The main image
was taken from a distance of about 621,000 miles from Saturn and shows
how the rings cast distinctive shadows on the planet's surface.
The other black-and-white photographs, taken from about 1.1 million
miles away, show the moons Titan and Tethys and Saturn's elaborate ring
system, which is created by the reflected light of particles of dust and
debris caught up in orbit around the equator.
Cassini arrived at Saturn in 2004 and six months later it separated
from a second probe, called Huygens, which landed successfully on Titan
after a breathtaking 12-hour descent. The first images from Titan showed
a world that may have looked remarkably similar to the early Earth
before life evolved.
Scientists believe Titan has many similar features to Earth, such as
lakes, rivers, channels, dunes, rain, snow, clouds, mountains and
possibly volcanoes.
The Cassini-Huygens mission is a joint enterprise between the US
space agency NASA, the European Space Agency and the Italian space
agency. It is named after two famous European astronomers, Giovanni
Domenico Cassini and Christiaan Huygens.
The spacecraft, launched in 1997, is currently in an extended mission
expected to last until 2017. "It has been nearly two years since NASA's
Cassini spacecraft has had views like these of Saturn's glorious rings,"
said a spokesman for NASA's Jet Propulsion Laboratory. "These views are
possible again
because Cassini has changed the angle at which it orbits Saturn and
regularly passes above and below Saturn's equatorial plane."
- The Independent
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