Cassini – Page 5 – Astronomy Now

Scientists pinpoint Saturn with exquisite accuracy

9 January 2015 Astronomy Now

Researchers have paired the continent-wide Very Large Baseline Array radio telescope system with NASA’s Cassini spacecraft to determine the position of Saturn and its moons to within two miles — at a range of nearly a billion miles.

Ten years ago Cassini imaged Saturn’s moon Iapetus

31 December 2014 Astronomy Now

A decade ago, the Cassini probe made a New Year’s Eve close approach to Saturn’s moon Iapetus and captured astonishing views of its remarkable surface.

Polar scars on Saturn’s moon Mimas

29 December 2014 Astronomy Now

This image from the Cassini probe of Saturn’s moon Mimas shows the scars of numerous impacts near the north pole.

The darker side of Saturn’s rings

23 December 2014 Astronomy Now

This image, taken by the Cassini probe, depicts Saturn’s main rings much darker than normal.

Is that a moon behind you?

21 December 2014 Astronomy Now

Tethys appears to be peeking out from behind Rhea in this image from the Cassini probe. Scientists believe that Tethys’ surprisingly high albedo is due to the water ice jets emerging from its neighbour, Enceladus.

Dunes on Saturn’s moon Titan need firm winds to move

8 December 2014 Astronomy Now

Titan is the only planetary moon known to have fields of wind-blown dunes on its surface. Experiments with the high pressure wind tunnel at Arizona State University’s Planetary Aeolian Laboratory provide key data for understanding dunes on Saturn’s largest moon.

Saturn’s swirling palette

18 November 2014 Astronomy Now

The fluid dynamics of Saturn’s upper cloud layers are interpreted in artistic terms in this 23rd August 2014 image from the Cassini-Huygens mission.

Jupiter’s ‘sunburnt’ Great Red Spot

12 November 2014 Astronomy Now

A new analysis of data from NASA’s Cassini mission in combination with lab experiments contradicts the leading theory that the striking colour of Jupiter’s Great Red Spot is due to reddish chemicals upwelling from below.

Cassini sounds the depths of Kraken Mare, Titan’s largest sea

10 November 2014 Ade Ashford

NASA’s Cassini spacecraft provides scientists with further radar and spectoscopic data during its 21st August 2014 flyby of Saturn’s largest moon, revealing depths of Kraken Mare, Titan’s largest liquid methane sea, and further evidence of transient islands.

Crescent Saturn and Titan seen by Cassini

7 November 2014 Stephen Clark

NASA’s Cassini spacecraft — in its 11th year orbiting Saturn — has spotted the gas giant and its haze-covered moon Titan suspended in the blackness of space like diamonds in the rough.