A look back at stunning photos taken by NASA's Cassini spacecraft

NASA's Cassinispacecraft will endits nearly two-decade space journey when it performs its "grand finale" and dives into Saturn's atmosphere on Sept. 15.

Here's a look at some of the best photos taken by Cassiniduring its mission.

Rings ofice

The photo below taken on July 9, 2004, just over a week after entering Saturn's orbit shows the planet's rings in ultraviolet.

According to NASA, the image indicates there is more ice in the outer part of the rings compared to the inner part, which could provideclues about their origins and evolution.

Dark side of Saturn

With Saturn blocking the glare of the sun, Cassini captured the planet suspended in darkness on Sept. 15. 2006.

The panoramic shot was created by combining 165 images taken in the span of nearly three hours. Colour was digitally added to resemble natural colour.

If you look closely to the left of Saturn, you can see a pale dot just inside one of the outer rings that pale dot is Earth.

Lunar geysers

Plumes of water ice and organic particles are seen emanating from the south pole of Saturn's moon, Enceladus,in the image below, a mosaic created from two images captured by Cassinion Nov. 21, 2009.

The plumes come out from what scientists call "tiger stripes," fissures along the moon's icy surface. Scientists also believe there is an ocean of water underneath the surface ofEnceladus and that the moon is apromising lead in the search for life outside of Earth.

Fab 5

Cassinicaptured a quintet of Saturn's moons on July29, 2010.

From left areJanus, Pandora, Enceladus, Mimasand Rhea.Cassiniwas about 1.1 million kilometres away from Rhea and 1.8 million kilometres from Enceladus when it took the photo.

Winter is coming

Titan, one of Saturn's moons that measures about 5,200 kilometres across and larger than the planet Mercury, is dwarfed by the planetin the firstphoto below taken onMay6, 2012.

The blue hueon Saturn's northern hemisphere is seen fading as the planet goes into spring, while the same azure haze getsdarker in the southern hemisphere as it prepares for winter the latter can be seen more clearly in the second photo below, taken on July 29, 2013. Both photos are natural colouror as human eyes would haveseen Saturn.

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Scientists believe the blue haze is caused by methane absorption and scattering by molecules and smaller particles in the atmosphere, which they say glows brighter when there is a reduction in ultraviolet light from the sun.

'The Day the Earth Smiled'

On July 19, 2013,Cassinicaptured Saturn, its rings, Earth and our moon all in one photo during a planetary eclipse of the sun an event NASA dubbed"The Day the Earth Smiled."

Earth is seen off to the centre right in the photo below taken about 1.44 billion kilometres away with an arrow pointing to its location, the moon off to the right of Earth.See here for a closer look.

Above and beyond

Cassinisoared above Saturn on Oct. 10, 2013, and the natural colour mosaic image below was created from 36 of the photos taken.

Saturn's six-sided weather pattern, known as the hexagon, is visible on its north pole.

Distant second

Titan,Saturn's largest moon, is seen behind Rhea, the planet's second largest, in the Dec. 23,2013, photo below.

The image is natural colour, taken about 1.8 million kilometres away from Rhea and 2.5 million kilometres from Titan.

Knocked up

Saturn's moon, Epimetheus, is seen in the May9, 2016, photo below taken about 2,700 kilometres from Epimetheusand with Saturn in its background.

The moon had been blasted and pelted by debris over years, leaving it misshapen and full of craters.

Rise and shine

The night side of theTethysmoon is illuminated by sunlight reflecting off Saturn a phenomenon known as Saturnshine in the May 13, 2017, photo below.

The photo was taken about 1.2 million kilometres from Saturnand 1.5 million kilometres fromTethys.