Europa's Ocean May Have An Earthlike Chemical Balance. A new NASA study modeling conditions in the ocean of Jupiter's moon Europa suggests that the necessary balance of chemical energy for life could exist there, even if the moon lacks volcanic hydrothermal activity.
NASA's 2015 budget request has been released (PDF, OMB Summary), with an interesting mission study : $15 million to look at a unmanned mission to Jupiter's moon Europa. Why Europa? It may have more water than Earth, sloshing around under a thick ice, which makes it a major contender for harboring life. Don't get too excited just yet though. The mission would't launch until around 2025 and would arrive in Jupiter's orbit in the early 2030s. That's a long way off, but a particular US Congressman really wants this mission to happen.
The wonders of space. This is a stunning black and white video taken from actual Cassini and Huygens mission footage.
NASA's Juno spacecraft launched this morning and is en route to Jupiter (launch video). Equipped with microwave, ultraviolet, infrared, and visible light detectors Juno will investigate the origins, atmosphere, and magnetosphere of the Solar System's largest planets over one year beginning with its arrival in 2016. Using its awesome solar-powered technology Juno will show Jupiter's magnetic field in detail never before seen. We probably won't hear much from Juno again until 2013, when it makes a fly-by of Earth. You can follow Juno on Twitter, so if it types out its scream, someone will hear it. Also
screaming traveling aboard Juno are three very special LEGO mini-figurines.
The Ice Fracture Explorer is Joseph Shoer's concept for an unmanned expedition into the oceans of Europa. [via]
At least three million tons of fishlike creatures could theoretically live and breathe on Europa, according to Professor Richard Greenberg of the University of Arizona in Tucson. Greenberg recently presented his findings to the Division for Planetary Sciences, American Astronomical Society (PDF, Google quick view). Greenberg has written about potential life on Europa before, but his recent calculations suggest that the concentrations of oxygen would be great enough to support not only microorganisms, but also more complex animal-like organisms which have greater oxygen demands. [more inside]
Tvashtar in Motion. Awesome five-frame GIF of fountaining sulfuric lava on Io courtesy New Horizons as it swung by Jupiter earlier this year. Found via Planetary Society Blog (Thank you, Emily). More on Tvashtar.
NASA's Official 'Galileo Dies' Page. Galileo is set to crash into Jupiter on Sunday. Responsible for many great images and tons of information, Galileo served well. Find a complete history of the Galileo mission here. Also, don't forget to watch the End of Mission webcast this Sunday at approx. 2 PM EST here.
Swan song for a great explorer. Tomorow, the Galileo explorer will make a flyby of Jovian moon Amalthea ending pehaps the geatest unmanned mission in NASA history. Galileo telemetry may not survive the flyby having already receieved much more radiation than it was designed for. Even if it does survive, this will be its final orbit scheduled to crash into Jupiter in September of next year. In spite of antenna difficulties, the spacecraft returned many beautiful images of Jupiter's moons, along with coverage of the Shoemaker-Levy collision and the first atmospheric probe to decend into Jupiter's weather.
Puzzling X-rays from Jupiter "We weren't surprised to find x-rays coming from Jupiter." Other observatories had done that years ago. The surprise is what Chandra has revealed for the very first time: the location of the beacon -- surprisingly close the planet's pole -- and the regular way it pulses. (Via Fark.)
Cassini's just outside the orbit of Jupiter. Where is the space program in all of this? Have mundane zealots hobbled humanity's greatest feats to come? Should we be plotting ourselves to the stars now?