Articles

Jon Lomberg

Jon Lomberg repots from NRAO--the National Radio Astronomy Observatory-- in Greenbank, West Virginia on a SETI workshop marking the 50th anniversary of Project Ozma.

Ryan Anderson

So, you may have heard the news making the rounds last week that a new analysis of the Viking data suggests there may actually be organics and (dare I even say it?) life on Mars! Yawn. Consider me underwhelmed.

Emily Lakdawalla

I was busy with other projects today, so today's post just asks you to look at this gorgeous three-image mosaic of a crescent Dione, taken during Cassini's most recent flyby a week ago.

Emily Lakdawalla

So I just received my

Emily Lakdawalla

A helpful reader has sent me copies of three recently published papers on China's first planetary probe, the Yinghuo-1 orbiter.

Emily Lakdawalla

Most of you have probably heard by now of two small asteroids, both in the neighborhood of 10 meters in diameter, recently discovered on trajectories that pass unusually close to Earth.

Emily Lakdawalla

Deep Impact is rapidly approaching its next -- and final -- target, comet Hartley 2, which it will fly by on November 4.

Emily Lakdawalla

Imagine this landscape: you're walking across an unusually smooth lunar surface, an impact melt sheet on the floor of a relatively recently formed crater.

Susan Lendroth

Lou Friedman handed off the keys to the Planetary Society -- and a few worlds as well -- to new Executive Director Bill Nye.

Emily Lakdawalla

Coincidentally, two new images of Neptune were posted today, from two very different sources.

Bill Nye

Is Venus the forgotten planet, or just one that's hard to figure out?

Marc Rayman

Dawn is now so far from the sun that even with its tremendous solar arrays, it does not receive enough sunlight to generate sufficient electrical power to operate all systems and still achieve maximum thrust.

Emily Lakdawalla

A couple of weeks ago Paul Schenk posted a few really cool videos to his personal blog. Paul's subspecialty is the topography of icy moons, and he's been doing a lot of work on the moons of Saturn lately.

Bill Nye

Nobel Prize laureates and former NASA officials have come together to express concern over the House of Representatives Science Committee's proposed budget for NASA.

Emily Lakdawalla

If I have to, I will drag reluctant people one at a time to plunge into NASA's Planetary Data System.

Björn Jónsson

This is a new, big mosaic of Voyager 1 images, this time showing the Great Red Spot at high resolution.

A.J.S. Rayl

With the Sun beginning to warm the landscape in the southern hemisphere of the Red Planet and winds whipping up here and there forming dust devils that kick the powdery, rust-colored topsoil into the atmosphere, the Mars Exploration Rovers have been experiencing sure signs of a Martian spring this month.

Emily Lakdawalla

This month there will be approximately a hundred different planetary science meetings (a list of which is at the end of this post).

Emily Lakdawalla

Congratulations to the Mars Climate Sounder team on winning a spot for a successor instrument aboard the next Mars orbiter, the joint NASA-ESA ExoMars, set to launch in 2016.

Emily Lakdawalla

NASA announced today that they had placed several new sets of historical photos on their