Daily Archives: April 22, 2011

Fedora 15 and Gnome 3

I’m not sure what I think of Gnome 3’s Shell Interface. Imma try it out but I think they may have fallen into the trap of making the desktop the point rather than, well, emacs and a web browser the point (the only two pieces of software I use every day and both days). Either way, Fedora 15 looks interesting, and it does use Gnome 3 Shell.

Linux in Exile has a review. The LIE author is really into Fedora, and seems to know a lot about it, so this is rather useful. Here.

Saturn is connected electrically to Enceladus


PASADENA, Calif. — NASA is releasing the first images and sounds of an electrical connection between Saturn and one of its moons, Enceladus. The data collected by the agency’s Cassini spacecraft enable scientists to improve their understanding of the complex web of interaction between the planet and its numerous moons. The results of the data analysis are published in the journals Nature

Scientists previously theorized an electrical circuit should exist at Saturn. After analyzing data that Cassini collected in 2008, scientists saw a glowing patch of ultraviolet light emissions near Saturn’s north pole that marked the presence of a circuit, even though the moon is 240,000 kilometers (150,000 miles) away from the planet.

The patch occurs at the end of a magnetic field line connecting Saturn and its moon Enceladus. The area, known as an auroral footprint, is the spot where energetic electrons dive into the planet’s atmosphere, following magnetic field lines that arc between the planet’s north and south polar regions.

“The footprint discovery at Saturn is one of the most important fields and particle revelations from Cassini and ultimately may help us understand Saturn’s strange magnetic field,” said Marcia Burton, a Cassini fields and particles scientist at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “It gives us the first visual connection between Saturn and one of its moons.”

Read the rest here