Join Donate

Guest Blogs

Author (Profile)
Space Topics
 

Comet Siding Spring: Exciting times

Karl Battams • October 06, 2014 • 5

We're now less than two weeks away from Comet Siding Spring buzzing ridiculously close to Mars, and the excitement is building - in both good and bad ways...

Preparing for A-MAVEN Science!

Karl Battams • October 03, 2014 • 3

How can we use MAVEN to learn about Comet Siding Spring, passing very close by Mars this month?

The Pivotal Discovery You’ve Probably Never Heard Of

Karl Battams • August 29, 2014 • 5

Karl Battams highlights the historic discovery, by an Air Force satellite, of a sungrazing comet.

Comet Siding Spring: Risk Assessment

Karl Battams • August 07, 2014 • 6

On October 19, 2014, Comet Siding Spring is going to have an extremely close encounter with the planet Mars. The bottom line: it seems most likely that our Martian spacecraft will be absolutely fine.

A new comet observing campaign for C/2013 A1 (Siding Spring)

Karl Battams • January 27, 2014 • 1

You thought you were rid of us...but we're back! Following the spectacular and, quite frankly unprecedented, success of the Comet ISON Observing Campaign, we are launching a similar venture for another unique cometary encounter that's happening this year. In October 2014, comet C/2013 A1 (Siding Spring) will pass extremely close to Mars.

The Mercury Transit You Probably Missed

Karl Battams • December 30, 2013 • 2

Planetary transits of the Sun by Mercury and Venus don't come along very often, and when they do we make a big deal of it because, well, it's really cool!

Schrödinger's Comet

Karl Battams • November 28, 2013 • 9

After impressing us yesterday, comet ISON faded dramatically overnight, and left us with a comet with no apparent nucleus in the SOHO/LASCO C2 images. As the comet plunged through the solar atmosphere, and failed to put on a show in the SDO images, we understandably concluded that ISON had succumbed to its passage and died a fiery death. Except it didn't. Well, maybe...

ISON, Encke, Mercury, and Home

Karl Battams • November 22, 2013 • 3

Comet ISON has entered the field of view of the STEREO HI-1A camera, and, in an awesome animation, it joins a large cast of characters already present there.

Comet ISON Enters the Final Countdown

Karl Battams • November 19, 2013 • 6

We're now less than two weeks away from comet C/2012 S1 (ISON) reaching perihelion and, if we’re honest, we are still none the wiser as to how the situation might play out!

Comet ISON lives on! (we think...)

Karl Battams • August 13, 2013 • 1

For several weeks now, ground-based observers have been blind to Comet ISON as our local star was sitting directly between us and the comet. I am delighted to share two pieces of good news: first, that ISON is still alive and well, and secondly that it has been recovered.

Items 1 - 10 of 11  12Next
astronaut on Phobos
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Mars
Advocacy

Our Advocacy Program provides each Society member a voice in the process. Funding is crucial.

Donate

You are here: