Articles

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

Charlene Anderson

Visualization can help the brain comprehend what words and numbers can struggle to covey. There's a YouTube video posted by

Emily Lakdawalla

I've had a fun morning of noodling around learning how to write KML files, and have produced one for Google Mars that shows you all of the Mars Orbiter Laser Altimeter tracks that cross the area Opportunity has driven through already, as well as the area of Endeavour crater.

Amir Alexander

Two nearly simultaneous announcements by scientists that they have detected entire planetary system deep in space have set the astronomical community abuzz.

Emily Lakdawalla

I got an advance copy of the first episode of

Emily Lakdawalla

Amateur image mage Björn Jónsson has recently turned his attention back to Voyager 1's close-up images of Jupiter.

Bruce Betts

One of the instruments on a 2016 mission to orbit Mars will provide daily maps of global, pole-to-pole, vertical distributions of the temperature, dust, water vapor and ice clouds in the Martian atmosphere.

Emily Lakdawalla

Rover fans have been excitedly watching the hills on Opportunity's horizon grow taller and taller as Opportunity rolls toward its destination, Endeavour crater.

Emily Lakdawalla

Following up on the story I first posted on August 22, the Jupiter impact fireball first noticed by Japanese amateur astronomer Masayuki Tachikawa has been independently confirmed by two other Japanese astronomers.

Emily Lakdawalla

I've spent today fiddling around with Google Calendar and have created a wholly new calendar of space events for the blog.

Emily Lakdawalla

This may be a very common event after all: another optical flash has been observed on Jupiter, again from an observer far east of the Greenwich meridian, though it was not Anthony Wesley (for once).

Emily Lakdawalla

It's high summer (in the northern hemisphere anyway) and many of you may be seeking shelter from the heat. If you need to collapse on the couch and watch TV, I have three space-y recommendations for you.

Jason Perry

Thanks to its active volcanic activity and sulfur-rich surface, Io is one of the most colorful worlds yet seen in the Solar System, save the Earth of course

Emily Lakdawalla

Sky & Telescope has just issued a set of 10 DVDs that contain every issue of the magazine published from the premier issue in November 1941 through December 2009, chronicling seven decades of scientific discovery and, of course, the entirety of the Space Age.

Emily Lakdawalla

Part of the definition of a planet is a solar system body's roundness.

Emily Lakdawalla

MESSENGER is in a unique position in the solar system, orbiting the Sun well within the orbit of Venus. From there, it can gaze outward from the Sun to search for tiny objects that may possibly be traveling in the same region, called vulcanoids.