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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

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.

President Trump formed a national space council. Now it needs a NASA administrator

Jason Davis • July 03, 2017 • 1

Tomorrow, NASA acting administrator Robert Lightfoot will have served longer than any other temporary head of NASA without having a successor nominated to fill the position.

Mars Exploration Rovers Update: Opportunity Sprains ‘Ankle’ but Perseveres on Walkabout

A.J.S. Rayl • July 02, 2017 • 1

The autumn skies over Endeavour Crater remained hazy as dust from the summer storms continued to rain down, but Opportunity encountered some unexpected and serious June gloom when her right front steering wheel jammed during the walkabout atop Perseverance Valley.

This giant, flower-shaped starshade creates an artificial eclipse to see distant exoplanets

Jason Rhodes • June 23, 2017 • 7

Starshade is a proposed flower-shaped spacecraft that can create an artificial eclipse, allowing space telescopes to spot planets orbiting distant stars.

Planetary Society volunteers host SpaceUp London 2017

Harriet Brettle • June 22, 2017

Earlier this month, The Planetary Society brought together space enthusiasts at Queen Mary University of London for “SpaceUp London 2017”—the first large-scale event organized by Planetary Society volunteers in Europe.

Revisiting the ice giants: NASA study considers Uranus and Neptune missions

Jason Davis • June 21, 2017 • 6

Only one spacecraft has ever visited Uranus and Neptune: Voyager 2, in the late 1980s. A new NASA report explores the reasons to go back, and what type of mission might take us there.

When New Horizons' next target passed in front of a star, this scientist was watching from Argentina

Alejandro Soto • June 16, 2017 • 2

A team of scientists recently traveled to rural Argentina in the hopes of catching New Horizons' next target—Kuiper Belt object MU 69—crossing in front of a distant star.

Curiosity update, sols 1675-1725: Traverse to Vera Rubin Ridge

Emily Lakdawalla • June 13, 2017

Curiosity has had a busy eight weeks, driving south from the Bagnold Dunes toward Vera Rubin Ridge. The path has steepened and the rover is now rapidly climbing upward with every meter traveled. It's been a productive time for arm instruments, but the drill is still not working.

Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters?

Jason Davis • June 12, 2017 • 6

Scientists have found what appears to be a 250-kilometer-wide crater near the Falkland Islands. Is it ground zero for Earth's largest-ever extinction event?

Despite setbacks, SpaceX continues to gain momentum

Jason Davis • June 09, 2017 • 5

SpaceX lost rockets in both 2015 and 2016. But an analysis of Falcon 9 launch data shows the company continues to gain momentum, while making giant strides forward in reusability.

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