The deadline for NASA's Discovery proposals was this week. 28 proposals were submitted with targets ranging from Phobos and Deimos, t...

Yesterday, the Space Telescope Institute released a set of images as well as a movie of Jupiter acquired during a rare triple moon-shado...

Has it really been four years since I last updated this blog?  It's hard for me to believe, but yes, it has been quite a while.  As I ...

I'm sorry I haven't posted on this blog in eight months.  I'm not sure why I stopped writing.  I think it just became more diff...

Today at around 13:00 UTC, the Jupiter system will be in opposition, when the planet and its attendant moons are on the opposite side of the...

I apologize for my absence the last couple of weeks.  When you write a blog in your spare time, it exists at the pleasure of my other obliga...

A paper was published today online in the Astrophysical Journal Letters on the June 3 fireball on Jupiter.  The impact produced a bright fla...

Each week here on the Gish Bar Times, we profile one of Io's 400 active volcanoes as part of our volcano of the week series.  This week,...

Here is a wrap-up of outstanding issues from this week: Ted Stryk requested that I include the C3 and C21 data covering Tvashtar to my com...

This week, two of the best images of Jupiter that I've seen in a long time were published online.  One is a blast from the past, as Björ...

Over the last few days, we have focused on the geology and volcanic history of Tvashtar Paterae, a string of four volcanoes located within ...

This week, for our series covering one Ionian volcano each week , we are taking a look at a large volcanic region in Io's north polar re...