For those who've followed NASA's Cassini mission these past 20 years, it's still a bit hard to believe it's gone. On Friday, September 15, the spacecraft plunged itself into Saturn's atmosphere, becoming part of the planet it had studied tirelessly for 13 years. While Cassini's mission is over, there's plenty of data and imagery from it to inspire us for years to come, including the last photo the spacecraft ever took.
Image: NASA/JPL-Caltech/Space Science Institute
On Friday, just hours before mission end, Cassini snapped a photo of its final destination, roughly 634,000km from Saturn. In this monochrome view, part of the planet is illuminated by light reflected from Saturn's icy rings. According to NASA, this photo was taken when this side of Saturn was facing away from the Sun, but when Cassini made its final descent into the planet's atmosphere, it was daytime.
Here's Cassini's new home in natural colour, using red, green and blue spectral filters:
In its 20 years with us, Cassini travelled 7.9 billion km, discovered six Saturnian moons, and collected 635GBs worth of scientific data. Though the spacecraft is no more, the hard, exciting work of poring through its information is just beginning.
"The Cassini operations team did an absolutely stellar job guiding the spacecraft to its noble end," Earl Maize, Cassini project manager, said after the mission's end. "From designing the trajectory seven years ago, to navigating through the 22 nail-biting plunges between Saturn and its rings, this is a crack shot group of scientists and engineers that scripted a fitting end to a great mission. What a way to go. Truly a blaze of glory."