Articles

Louis D. Friedman

I've been getting a tremendous amount of e-mail (and old-fashioned postal mail, too) in response to the new plan for human space exploration announced by the Obama Administration.

Ken Kremer

Planetary Society volunteer Ken Kremer witnessed the launch of Space Shuttle Discovery on its STS-131 mission to the International Space Station in person and filed this report on the successful mission.

Emily Lakdawalla

A big thanks to Bob Nemiroff, editor of NASA's Astronomy Picture of the Day website, for picking my composition of a set of Cassini photos of Dione and Titan for today's offering.

Emily Lakdawalla

Yesterday I asked for suggestions for topics to write about, and you readers seem to have volcanoes on your minds!

Emily Lakdawalla

Usually I like Mondays, but today I'm feeling a bit overwhelmed. When I get overwhelmed, I look at pictures from Cassini.

Emily Lakdawalla

This week on Planetary Radio, Mat Kaplan talks with Bill Nye, who was one of the 200 invited to hear President Obama's speech on space at Kennedy Space Center last week.

Ryan Anderson

I’m headed off to El Paso Texas tomorrow! Why? Because that’s where the Mars Sedimentology and Stratigraphy workshop is!

Emily Lakdawalla

While I was waiting for President Obama's speech yesterday, I read over a paper by I. N. Belskaya et al titled

Louis D. Friedman

Yesterday, I -- together with Planetary Society Board members Jim Bell, Bill Nye, Neil Tyson, Scott Hubbard, and Elon Musk -- attended President Obama's Space Conference in Florida.

Emily Lakdawalla

As I write this I am watching President Obama walk down the steps from Air Force One to attend the Florida space conference and deliver a speech at 14:40 EDT (18:40 UTC) about the future of American space exploration.

Emily Lakdawalla

Bill Nye, Jim Bell, Scott Hubbard, Neil deGrasse Tyson, and Lou Friedman -- all members of The Planetary Society's Board of Directors -- attended President Obama's Space Conference at the Kennedy Space Center today.

Emily Lakdawalla

The animation I posted yesterday, of a huge coronal mass ejection exploding away from the Sun, caused several people to ask if it could do Earth any harm.

Emily Lakdawalla

After three listening campaigns taking place from January through April, Mars Odyssey has detected no signal from Phoenix.

Charlene Anderson

Members of The Planetary Society's Board of Directors have been invited to hear President Obama present his new approach to human spaceflight tomorrow at the Kennedy Space Center.

Emily Lakdawalla

The Sun just spat out a huge coronal mass ejection, an event made visible by the watchful cameras on SOHO.

Emily Lakdawalla

It's axiomatic that as soon as I post about pretty Cassini pictures, another set of pretty photos will appear on the raw images website.

Emily Lakdawalla

Cassini has it almost too easy. Point at anything in the Saturn system and you're guaranteed of a shot that looks, at least, pretty.

Emily Lakdawalla

The first of what will be five trajectory correction maneuvers (TCMs) is

Emily Lakdawalla

Venus? What? Somebody still studies that planet? Yes, and in fact there's an active spacecraft there: Venus Express, the poor little sister to Mars Express.

Emily Lakdawalla

The Cassini Saturn orbiter just completed its second very close flyby of Saturn's mid-sized iceball moon Dione, and the images from that encounter have been streaming onto the Cassini raw images website this morning.