Articles

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.

Elias Nakouzi

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

A.J.S. Rayl

After wrapping the final science investigations on the slopes of Cape Tribulation, Opportunity climbed up and over the rim of Endeavour Crater in March and embarked on the journey south toward its next science target: Perseverance Valley.

Nathan Barba

Arizona State University graduate student Nathan Barba talks with some of JPL’s finest to get guidance and advice on how to join this illustrious group of space explorers.

Marc Rayman

Now in its third year of orbiting a distant dwarf planet, a spacecraft from Earth is as active as ever. Like a master artist, Dawn is working hard to add fine details to its stunning portrait of Ceres.

Bill Nye

The Planetary Society is joining the March for Science. Bill Nye is serving as an honorary co-chair, and our organization is an official partner. Here's why we're marching, and how to join us.

Jason Davis

A SpaceX Falcon 9 rocket booster recovered by a drone ship last year will be reflown later this week, marking what could be a new milestone in the quest for affordable spaceflight.

Anna Scott

There's no verdict quite yet on the giant planet's core, and scientists are still gathering clues about the accuracy of our current solar system formation models.

Björn Jónsson

Image processor Björn Jónsson shares some of his latest stunning images of Jupiter, created using data from NASA's Juno spacecraft.

Casey Dreier

We break down every sentence from Trump's new NASA budget, so you don't have to.

Jason Davis

NASA has only flown astronauts aboard a rocket's first flight once, when John Young and Bob Crippen took space shuttle Columbia on the boldest test flight in history. What are the risks of repeating the feat for SLS?

Joel Davis

Arabia Terra has always been a bit of a martian enigma. Planetary scientist Joel Davis takes us on a tour of its valley networks and their significance in telling the story of water on Mars.

Jason Davis

Following a pre-ship review at Planetary Society headquarters, LightSail 2 is ready to be integrated with its Prox-1 partner spacecraft. The final shipping schedule, however, has yet to be determined.

Wayne Hall

In Kentucky, some very driven people are writing their own chapter of space exploration based on vision, entrepreneurial risk, and scientific and engineering know-how. Wayne Hall shares their stories.

Jason Davis

NASA escaped a large-scale budget slash, and planetary science fared well. ARM is canceled, the Moon-versus-Mars debate is not mentioned, and Earth science stands to lose some missions.

Mark Showalter

Planetary astronomer Mark Showalter tells the story of when he became the first human to ever set eyes on Saturn's strange moon Pan in 1990.