Juno’s New Jupiter

The Juno spacecraft began its long journey to Jupiter in 2011.  Waking up in 2016 it underwent a successful orbit injection on July 4th. Now after nearly a year of waiting, the public finally gets to see the first fruits of the mission. It has certainly been worth the wait.   A new Jupiter, seen from a distance of 52,000 Km, has a vivid and chaotic southern pole in the above image.  Swirling storms thousands of kilometres across whirl around one another in a sea of gaseous ammonia clouds.  Will the system remain chaotic? Or will it change a year from...

Juno July

As Canadians start up Canada day celebrations and Americans get ready for their independence day, the world of space exploration holds its breath and hopes for a good result.  On July 4th, the Juno spacecraft will arrive at Jupiter after a five year long journey.  NASA continued its recent theme of producing movie-trailer-like videos to promote the mission. Although I love the imagery and the design of the trailer, it feels cheesy to me.  Maybe it’s because I find movie trailers cheesy in general, and this is trying to appeal to the general public.  Though regardless of how I feel,...

The Intense Invisible Aurora

Jupiter has aurora.  It’s not surprising since it has a very powerful magnetic field.  It’s only natural that the two largest structures in the solar system, the Sun’s solar wind influence (called the heliosphere)  and Jupiter’s magnetosphere, should be constantly battling. But don’t expect to see Jupiter’s aurora through a backyard telescope.  The result of this battle is far more energetic, producing an aurora invisible to the human eye, one made of X-rays. The Sun constantly blasts charged particles off into space in all directions, assaulting the planets, moons, and other solar system bodies.  It is this blast of solar wind that gives...