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BepiColombo Earth flyby

Europe and Japan's BepiColombo spacecraft, which launched in 2018, will fly by Earth on 10 April and use our planet's gravity to swing towards the inner solar system. Learn more about this mission and why we study Mercury.

Apollo 13 50th Anniversary

The Planetary Society is celebrating the 50th anniversary of Apollo 13, which launched on 11 April 1970. Disaster struck on 13 April, prompting the crew's infamous "Houston, we've had a problem" call for help. Learn what happened, and how NASA got the astronauts home safely on 17 April.

More Apollo resources

Blogs & Articles

Fall 2017 issue of The Planetary Report now available

Donna Stevens • September 27, 2017

The Fall 2017 issue of The Planetary Report is in the mail and available online now to our members!

Cassini: The dying of the light

Emily Lakdawalla • September 15, 2017 • 12

Cassini is no more. At 10:31 according to its own clock, its thrusters could no longer hold its radio antenna pointed at Earth, and it turned away. A minute later, it vaporized in Saturn’s atmosphere. Its atoms are part of Saturn now.

And then there was one

Jason Davis • September 11, 2017 • 1

The end of the Cassini mission is a harbinger for a looming gap in outer planets exploration missions.

What to expect during Cassini's final hours

Emily Lakdawalla • September 11, 2017

A timeline of what to expect from the great mission during its final hours.

A guide to Cassini's remaining orbits

Emily Lakdawalla • July 05, 2017 • 3

Sadly, the Cassini mission ends soon. We're halfway through the "Grand Finale" orbits. Only eleven and a half orbits remain until Cassini meets its fate on September 15. Here's a look at the great mission's final science orbits.

Saturn's small satellites, to scale

Emily Lakdawalla • May 17, 2017 • 3

Emily shares another of her popular size comparisons of solar system bodies, taking advantage of Cassini's recent views of Saturn's tiniest moons.

Cassini's 'Grand Finale' Portrait of Saturn

Ian Regan • May 16, 2017

Amateur image processor Ian Regan shares a stunning mosaic of Saturn in all its ringed glory.

Radar in Earth and Planetary Science, Part 2

Heather Hunter • May 12, 2017 • 4

Heather Hunter brings us the next installment in her series on radio detection and ranging.

Saturn and Titan in the Milky Way

Emily Lakdawalla • May 08, 2017

An unusual photo of Saturn by astrophotographer Damian Peach shows the planet and its largest moon nestled among the star-filled lane of the Milky Way.

Trusty Cassini survives first dive between Saturn and its rings

Emily Lakdawalla • April 28, 2017 • 4

Cheers erupted in the Von Karman auditorium at the Jet Propulsion Laboratory early Thursday morning as a squiggly green line on a graph developed a crisp, tall peak, signifying that the Cassini spacecraft was calling home after surviving its first plunge between Saturn and its ring system.

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