For the period of time before and after the Philae landing, Rosetta was able to orbit the comet close enough that it was in gravitationally bound orbits, circling the comet's center of gravity. As the comet's activity increases, the spacecraft has to spend most of its time farther away, performing occasional close flybys. The first of these is at 6 kilometers, on February 14.
Brief updates on four ongoing missions: JAXA's Akatsuki and Hayabusa 2, and China's Chang'e 3 and Chang'e 5 test vehicle. JAXA has articulated the new science plan for Akatsuki. Hayabusa 2's ion engines have checked out successfully. The Yutu rover is still alive on the Moon, and Chang'e 5 test vehicle has successfully tested crucial rendezvous operations in lunar orbit.
To understand the possible distribution of life in the Universe it is important to study planet formation and evolution. These processes are recorded in the chemistry and mineralogy of asteroids and comets, and in the geology of ancient planetary surfaces in our Solar System.
Aomawa Shields discusses a workshop she designed for underrepresented girls in grades 6-8 that will teach key concepts in astronomy, highlighting what is beyond what we can see with our eyes, using nontraditional methods.
The Dawn mission released new images of Ceres yesterday, taken on February 4, when Dawn had approached to within 145,000 kilometers. More details are coming into view, and they're fascinating. For one thing, there's not just one white spot any more: there are several.
A FOIA request offers insight into NASA's planetary science extended mission review process, which seems, at best, confusing, and at worst—with adjectival ratings like “Very Good/Good”—arbitrary.
Van Kane gives a summary of the 53-page proposed Fiscal Year 2016 NASA Planetary Science budget.
Here they are, the first images of Pluto from the approach phase of the New Horizons mission. Science has begun; we're on the home stretch!
Today I'm excited to show you some previously unreleased images from Mars Orbiter Mission, containing Mars' moons Phobos and Deimos.
Posted by Bruce Betts on 2015/02/04 05:00 CST
Our own Dr. Bruce Betts is once again teaching his Introduction to Planetary Science and Astronomy college course online. Come join him.
Posted by A.J.S. Rayl on 2015/02/03 05:54 CST
On January 24th, something wonderful happened on Mars. Opportunity completed her 11th year of exploring the surface of the Red Planet! The veteran rover couldn't exactly go to Disneyland to celebrate this amazing achievement, so she did what she loves to do – roved on.
NASA will set the Space Launch System's inaugural flight date at the end of this year, according to the agency's 2016 budget request, which was released on Monday.
It's Official: We're On the Way to Europa
President requests $18.5 billion for NASA in 2016, an increase of $519 million
NASA's 2016 budget request increases the space agency's budget by $519 million, starts a new mission to Europa, increases funds to Commercial Crew, and threatens some long-running planetary missions.
The winter issue of The Planetary Report continues to hit Planetary Society members’ mailboxes and, for those of you who want your copy in digital form, it’s now posted on our website.
Posted by Bruce Betts on 2015/01/30 07:03 CST
Camera purchased with the support of a 2009 Shoemaker NEO Grant is now on a new telescope providing follow-up measurements for even fainter near-Earth objects.
As I write this post, New Horizons is nearing the end of a weeklong optical navigation campaign. The last optical navigation images in the weeklong series will be taken tomorrow, but it will likely take two weeks or more for all the data to get to Earth. Two weeks! Why does it take so long?