Cassini has obtained its highest resolution images yet of Saturn’s hexagon-shaped jet stream.
Cassini has obtained its highest resolution images yet of Saturn’s weird hexagon-shaped jet stream.
They’ve even turned it into a movie!
Cassini has obtained its highest resolution images yet of Saturn’s weird hexagon-shaped jet stream.
They’ve even turned it into a movie!
Using Cassini data scientists theorize that the lack of craters in the lowlands of Titan is because those lowlands were swamps that quickly erased the evidence.
A new image of Titan’s northern lakes.
Spring is moving to summer on Titan, and as the season changes scientists are expecting the number of storms in the northern latitudes to increase, thereby filling these lakes.
Cassini has taken a spectacular full color image of Saturn’s hexagon-shaped storm that surrounds its north pole.
Is a natural rain of diamonds occurring on Jupiter and Saturn? Two scientists say yes!
In their scenario, lightning zaps molecules of methane in the upper atmospheres of Saturn and Jupiter, liberating carbon atoms. These atoms then stick onto each other, forming larger particles of carbon soot, which the Cassini spacecraft may have spotted in dark storm clouds on Saturn3. As the soot particles slowly float down through ever-denser layers of gaseous and liquid hydrogen towards the planets’ rocky cores, they experience ever greater pressures and temperatures. The soot is compressed into graphite, and then into solid diamonds before reaching a temperature of about 8,000 °C, when the diamond melts, forming liquid diamond raindrops, they say. Inside Saturn, the conditions are right for diamond ‘hail’ to form, beginning at a depth of about 6,000 kilometres into the atmosphere and extending for another 30,000 km below that, says Baines. He estimates that Saturn may harbour about 10 million tonnes of diamond produced this way, with most of it made up of rocks no bigger than a millimetre and perhaps some chunks spanning 10 centimeters.
But don’t invest your money yet in a diamond gathering expedition. This is only a theory, which many scientists dispute.
The double planet, rocky and wet with a big moon, as seen from Saturn.
Why has Cassini detected no waves on the lakes of Titan?
Cassini has found hints of activity coming from the Saturn moon Dione.
The spacecraft’s magnetometer has detected a faint particle stream coming from the moon, and images showed evidence for a possible liquid or slushy layer under its rock-hard ice crust. Other Cassini images have also revealed ancient, inactive fractures at Dione similar to those seen at Enceladus that currently spray water ice and organic particles.
Scientists have released the first topo map of Titan.
Whereas Earth’s tallest mountain towers nearly 9 kilometers above sea level, Titan’s topographic variations are mild: Its highest point is just half a kilometer above the mean and its lowest just 1.7 kilometers below.
Overall the detail here is not very great. None of the instruments on Cassini can see anything smaller than a half kilometer, about 1,500 feet, so the data doesn’t really show us the rough details. Moreover, the best data is spotty, as it has been accumulated by about a hundred Cassini fly-bys, rather than systematically by an orbiting spacecraft.
Cassini snaps an amazing image of Saturn’s north pole vortex.
Cassini has imaged meteorites as they crash into Saturn’s rings.
The seasons change on Titan as winter clouds begin to form over its south pole.
The science team for Cassini has released a spectacular mosiac of Saturn and its rings, backlit by the Sun.
New data suggests that the icy crust of Titan is twice as thick as previously estimated.
“The picture of Titan that we get has an icy, rocky core with a radius of a little over 2,000 kilometers, an ocean somewhere in the range of 225 to 300 kilometers thick and an ice layer that is 200 kilometers thick,” [said Howard Zebker of Stanford University]. Previous models of Titan’s structure estimated the icy crust to be approximately 100 kilometers thick.
This means that the methane lakes and rivers of Titan are flowing across a bedrock of ice, which at the cold temperatures there would be as solid as rock is here on Earth.
Cassini has taken some spectacular new images of the gigantic hexagon-shaped vortex on Saturn’s north pole.
The after effects of the giant storm on Saturn.
How Huygens bounced on Titan. With animation.
The landslides of Iapetus: longer and more frequent than anywhere else in the solar system.
Cassini has photographed daytime lightning on Saturn.