Articles

Emily Lakdawalla

Rosetta's comet target, 67P/Churyumov-Gerasimenko, has emerged from behind the Sun as seen from Earth, and the Very Large Telescope has photographed it. The new images show that cometary activity has already begun as Rosetta approaches for its August rendezvous.

Bill Nye

Last week, my fellow Board Member Neil deGrasse Tyson and I were invited to be presenters at the first edition of the White House Film Festival. Neil asked the President if we could take a selfie with him. In those few moments, the President, Neil, and I spoke about science and space exploration.

Bruce Betts

PlanetVac project leader Kris Zacny of Honeybee Robotics reports on presenting results of the Planetary Society project PlanetVac that created a prototype planetary dirt sampling system and tested it under Martian pressures.

Casey Dreier

Europa may get a mission...eventually. We give our first take on the 2015 NASA Budget request. How does Planetary Exploration fare? Which projects were cancelled? Will NASA capture an asteroid? And most importantly, what can you do about it?

Taryn O'Neill

For a town dependent on Stars, there are far too few people here who look up at the sky. But come this Sunday, March 9, the epic series of science, space and humanity will return: Cosmos: A Spacetime Odyssey. Why does it matter for Hollywood, specifically? I'll tell you why it will. And then why it should.

Emily Lakdawalla

In a series of drives, Curiosity flew past the

ESA Mars Express Team

Today's update from the Mars Express team contains the realisation that, for some of the risks associated with October's Siding Spring flyby, there may not be much the team can do.

Casey Dreier

NASA announced today that their Europa mission concept studies will be for a sub-$1 billion spacecraft, a lower level than previously imagined for a mission to this watery moon.

Emily Lakdawalla

I am very excited about 2015, more so than I have been about any year since I started working at The Planetary Society. Dawn will enter orbit at Ceres, and New Horizons, which will fly past Pluto and Charon. But if we want this kind of exploration to continue, I'm challenging you, dear readers, to tell the world why such non-planetary worlds are compelling places to go exploring.

A.J.S. Rayl

The Mars Exploration Rover mission put its 10th anniversary in the rear view mirror in February and roved on into its 11th year of surface operations at Endeavour Crater.

Emily Lakdawalla

The United States Geological Survey recently issued an improved version of the Viking color map of Mars. This 40-year-old data set still provides the prettiest global-scale map of the planet.

ESA Mars Express Team

Here's the next installment in the continuing story of how the Mars Express team is preparing for Comet Siding Spring flyby, 19 October 2014. This week: introducing the spacecraft's subsystems and structure – and wondering how we can absorb impacts.

Emily Lakdawalla

Seeing hardware that was built by human hands sitting on the surface of another planet never, ever gets old. Today, the Lunar Reconnaissance Orbiter Camera team released two new images of Chang'e 3 and Yutu on the Moon.

Emily Lakdawalla

Over the weekend, Chinese state news agency Xinhua reported in both Chinese and English a little bit more information on what has stilled the Yutu rover's motions across the lunar surface:

Ted Blank

Would you like to be part of one of the largest citizen-science efforts in the history of astronomy? The International Occultation Timing Association (IOTA) invites you to join in the campaign to observe and time the best and brightest asteroid occultation ever predicted to occur over a populated area – and no telescope is required!

Marc Rayman

Continuing its daring mission to explore some of the last uncharted worlds in the inner solar system, Dawn remains on course and on schedule for its rendezvous with dwarf planet Ceres next year.

Casey Dreier

A coalition of grassroots pro-space advocates descended on Washington, D.C. this week, and held over 100 meetings with representatives and staff throughout Congress to argue for increased investment in NASA.

ESA Mars Express Team

Today's post continues where we started last week with an update from the Mars Express Flight Control Team at ESOC on their preparations for the 19 October Comet Siding Springs flyby. Today: defining the challenge!

Emily Lakdawalla

Check out this unusual crater on Mars. It's not a very big one, less than 500 meters in diameter, and yet it has two rings. Most craters on Mars this size are simple bowl shapes. What's going on here?

J. Marshall Shepherd

Former deputy project scientist and current science team member J. Marshall Shepherd tells us why missions like NASA's Global Precipitation Measurement (GPM) are vital to our way of life.