Articles

Adam Block

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

Jason Davis

The Planetary Society's LightSail project has roots in a late-1970s NASA plan to send a giant solar sail spacecraft to Halley's Comet. Now, a cache of archival documents adds new depth to the audacious plan.

Casey Dreier

Last week, the planetary science community lost Nathan Bridges, a leading scientist whose work studied how wind sculpts the surface of Mars. Nathan was a prolific scientist involved in many Mars exploration missions, a charter member of The Planetary Society, a friend, husband, and father.

Larry Crumpler

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

A.J.S. Rayl

Opportunity spent the month of April 2017 outside the western rim of Endeavour Crater, cruising toward Cape Byron and Perseverance Valley, the centerpiece of its tenth extended mission.

Marc Rayman

The Dawn spacecraft is about to swing into a new orbital path to observe the enigmatic

Emily Lakdawalla

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.

David Shortt

Have you ever wanted to learn the fundamental physics behind one of the most basic concepts of rocket science? In part one of our two-part series, we explore the foundations of the famous rocket equation.

Jason Davis

NASA's new heavy lift rocket is currently scheduled to launch the Orion spacecraft on a test flight next year. But all signs are pointing to a probable delay.

Emily Lakdawalla

The four-stop dune science campaign offered the engineers some time to continue troubleshooting the drill without any pressure to use it for science. They scooped sand at a site called Ogunquit Beach but couldn't complete the planned sample activity because of new developments in the drill inquiry. The rover has now headed onward toward Vera Rubin Ridge.

Jason Davis

NASA's long-lived Cassini spacecraft is about to buzz Titan for the final time, putting it on course for a spectacular mission finale that concludes in September.

Donna Stevens

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

Jason Davis

Here are some recent reports from our NEO Shoemaker Grant program asteroid observers, who are quite literally trying to save the world.

Harriet Brettle

The annual Space Symposium brings together space leaders from around the world to discuss, address and plan for the future of space.

Elias Nakouzi

If you find a structure that looks like ancient life, can you be really sure that it is ancient life?

Franck Marchis

NASA's Cassini spacecraft sniffed out molecular hydrogen spewing from Enceladus' subsurface ocean. The discovery means Saturn's moon has all the basic ingredients needed to support life.

Felipe Cervera

Planetary Performance scholar Felipe Cervera brings a perspective on

Jason Davis

I believe Expedition 50 had a fun and good ISS crew. I base this declaration solely on the moments they shared on social media. This logic is completely bulletproof and there's no point trying to prove otherwise.

Jason Davis

NASA revealed its most concrete plan yet for sending humans back into deep space, centered around a small lunar space station and a reusable transport ship to carry astronauts to Mars and back.

Andrew Jones

Later this year, China is launching the Change'5 spacecraft to return a sample from the Moon. The mission will pave the way for future ambitions, including crewed trips to the lunar surface.