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Space Exploration Oct 12, 2018

Five in a row—the planets align in the night sky

For the second time this year, the five brightest planets can be seen at the same time. You can catch them by looking towards the western sky after sunset. The planets will form a line rising up from the horizon.

Materials Science Oct 8, 2018

Saturn's largest moon may hold key to cleaner engines

A new discovery on Titan's haze is revealing new information about burning fuels on Earth.

Space Exploration Oct 5, 2018

First results from Cassini's final mission phase show protons of extreme energies between the planet and its dense rings

Approximately one year ago, a spectacular dive into Saturn ended NASA's Cassini mission—and with it a unique, 13-year research expedition to the Saturnian system. In the mission's last five months, the probe entered uncharted ...

Space Exploration Oct 5, 2018

Groundbreaking science emerges from ultra-close orbits of Saturn

New research emerging from the final orbits of NASA's Cassini spacecraft represents a huge leap forward in our understanding of the Saturn system—especially the mysterious, never-before-explored region between the planet ...

Space Exploration Oct 4, 2018

In its final days, Cassini bathed in 'ring rain'

On its last orbits in 2017, the long-running Cassini spacecraft dove between Saturn's rings and its upper atmosphere and bathed in a downpour of dust that astronomers call "ring rain."

Space Exploration Oct 4, 2018

Latest insights into Saturn's weird magnetic field only make things weirder

Some of the last data from the Cassini mission reveals more structure in Saturn's magnetic field, but still no answer as to how it formed.

Space Exploration Oct 4, 2018

Surprising chemical complexity of Saturn's rings changing planet's upper atmosphere

Political humorist Mark Russel once joked, "The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage."

Space Exploration Sep 4, 2018

Saturn's famous hexagon may tower above the clouds

The long-lived international Cassini mission has revealed a surprising feature emerging at Saturn's northern pole as it nears summertime: a warming, high-altitude vortex with a hexagonal shape, akin to the famous hexagon ...

Astronomy Aug 27, 2018

15 of Spitzer's greatest discoveries from 15 years in space

NASA's Spitzer Space Telescope has spent 15 years in space. In honor of this anniversary, 15 of Spitzer's greatest discoveries are featured in a gallery.

Space Exploration Jul 26, 2018

New family photos of Mars and Saturn from Hubble

In summer 2018 the planets Mars and Saturn are, one after the other, in opposition to Earth. During this event the planets are relatively close to Earth, allowing astronomers to observe them in greater detail. Hubble took ...

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