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Field Report from Mars: Sol 4734

Larry Crumpler • May 18, 2017

Opportunity has arrived at the head of Perseverance Valley—a possible water-cut valley.

Jupiter from New Horizons

Alex Parker • May 16, 2017 • 2

Using new image processing techniques, Alex Parker brings new life to an old image of Jupiter captured by the New Horizons mission on its way to Pluto over a decade ago.

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.

Geology on Mars: Using stratigraphic columns to tell the story of Gale Crater

Heidi Stauffer • May 15, 2017

Stratigraphic columns are a basic tool in geology, used on both Earth and Mars to tell the story of a location. But what are they really?

Radar in Earth and Planetary Science, Part 2

Heather Hunter • May 12, 2017 • 2

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

A journey to Jupiter: Amateur astronomers create 1,000-image video of planet in motion

Peter Rosén • May 09, 2017

Peter Rosén shares an amazing animation of Jupiter made from more than 1,000 images taken by 91 amateurs from around the world.

Earth's ring system: This mosaic shows 46+ geostationary satellites in one image

Adam Block • May 05, 2017 • 1

Astrophotographer Adam Block captures 46 geostationary satellites, plus some unnamed stragglers, in one 10-frame image mosaic.

HERA crewmember shares thoughts ahead of simulated 45-day asteroid mission

Tim Evans • May 05, 2017

Tonight, a four-person crew will seal themselves inside a three-story habitat at NASA's Johnson Space Center, kicking off a simulated 45-day mission to an asteroid. One crewmember shares his thoughts before entering.

Learn the rocket equation, part 2

David Shortt • May 05, 2017 • 2

In the second and final chapter of our series, we’ll explore what the rocket equation has to say about travel through the solar system, using the example of launching a rocket to Pluto.

Field Report from Mars: Sol 4718

Larry Crumpler • May 03, 2017

Opportunity has made the final drive in the month-long process that began way up north inside Endeavour Crater earlier this Earth-year.

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