Articles

Edward Gomez

Mostly the Universe stays unchanged for hundreds, thousands or even millions of years. There are some cases however when some things change really rapidly. Recently I observed one of these rapidly changing, transient phenomena, as asteroid called 2012 DA14. I work for Las Cumbres Observatory and we have been trying to observe this asteroid since 5 February.

Bill Dunford

When the sunlight catches it just right, Saturn's F Ring is something to see.

Mat Kaplan

SEE IT NOW: The Planetary Society's CEO, Bill Nye the Science Guy, joined Director of Projects Bruce Betts for a live webcast as 2012 DA14, a 45-meter asteroid, was passing Earth. Bill and Bruce also marveled at video of the meteor burst high over a city in Russia.

Emily Lakdawalla

Last week, I posted an explainer on why Hubble's images of galaxies show so much more detail than its images of Pluto. Then I set you all a homework problem: when will New Horizons be able to see Pluto better than Hubble does? Here's the answer.

Emily Lakdawalla

A large meteor streaked through the skies above Russia on the morning of Feb 15th, causing a deafening sonic boom that shattered windows and injured hundreds.

Damia Bouic

Damien Bouic received some well-deserved recognition from the Chemcam team for his great Curiosity image processing work.

Heidi Hammel

Preliminary estimates show that the meteoroid was 15 meters wide and weighed roughly 8000 tons. The resulting airburst would have the equivalent yield of about a 1/2 megaton explosion.

Casey Dreier

Brand new information about the effects of the across-the-board cuts known as Sequestration, if they were to be enacted.

Emily Lakdawalla

Emily Lakdawalla and Courtney Dressing talked about just how common Earth-sized exoplanets may be in our neighborhood. Watch the replay here.

Emily Lakdawalla

How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? I get asked this question, or variations of it, a lot. Here's an explainer.

Casey Dreier

NASA released its Spinoff 2012 report, detailing the numerous technology transfers, inventions, and economic impact by the U.S. space program.

Larry Crumpler

We have been seeing lots of small light-colored veins crossing through the outcrops here on Matijevic Hill, and we have tried to get a handle on the composition of these veins by doing multiple offsets with the APXS. It appears that the small veins are calcium sulfate, as best we can determine.

Emily Lakdawalla

While researching another story, I came across an image I don't remember ever seeing before, of a moonrise from an unexpected source.

Casey Dreier

Bobak

Bill Nye

Bill Nye and Neil deGrasse Tyson spoke to the House Science committee about the importance of space and scientific research. Bill Nye also visited with Congressman Culberson and Congressman Wolf's chief of staffabout supporting NASA's Planetary Science Program.

Emily Lakdawalla

The discoverers of Pluto's fourth and fifth moons are inviting the public to vote on (and write in candidates for) their formal names. Voting closes in two weeks.

Bill Dunford

Why spend effort and scarce resources on space exploration when we have so many problems here at home? Turns out, there are some pretty good reasons.

Emily Lakdawalla

With the Landsat Data Continuity Mission scheduled to launch on Monday, there's been a lot of Tweeting about Landsat, and through one such Tweet I learned about a resource that I hadn't known existed before: the LandsatLook Viewer. This is a graphical interface to more than a decade worth of Landsat data, a tremendous resource for anyone interested in Earth's changing surface, natural or manmade.

Emily Lakdawalla

In which I dive into the Magellan radar data set and come up with some images of an unusual and possibly unique solar system terrain: tessera.

A.J.S. Rayl

With its robot nose to the Martian grindstone, Opportunity completed its ninth year of working on Mars in January, making another significant science discovery in tiny white veins on Matijevic Hill as the Mars Exploration Rover (MER) mission rolled on into Year 10.