Space & Astronomy

UC Santa Cruz astronomy professor discusses the music he has created from stellar movements

Santa Cruz Sentinel, February 11, 2010.

The silent sterility of space mutes even the most destructive astronomical events.

But Gregory Laughlin is translating — “sonifying” — stellar movements into sound, allowing the public to listen in on thousands of years of gravitational interplay between a star and its orbiting planets.

Laughlin, an astronomy professor at UC Santa Cruz, will be featured on KZSC”s “On What Grounds?” today to discuss his work and his upcoming lecture with composer Philip Glass on art and science, and to play some of the sounds he has created. Read More >

Posted by Jennifer Welsh in 2010, Journalism, Santa Cruz Sentinel, Space & Astronomy

Jupiter’s Moons Have Many Earth-Like Features

American Geophysical Union, GeoSpace Blog, December 18th, 2009.

I can imagine Galileo sitting in the dark, peering through his telescope and taking careful notes on the objects he saw orbiting Jupiter.  Or maybe I saw it in some Space Channel documentary.  Either way, the fact that in 1610 Galileo used a 30 times magnifying telescope to discover these moons blows my mind. The insights on the structure and atmosphere of these moons presented at P53B: The Galilean Satellites: 400 years of Discovery II blew my mind all over again.

Jupter's moons, from NASAThe Galilean satellites, or Jupiter’s moons as they are known to lay-folk like myself, were the first objects found orbiting something other than Earth or the Sun. The four Galiean moons, seen from top to bottom in NASA image at the right, are Io, Europa, Ganymede (the big daddy of the bunch) and Callisto. All are more than 3000 km in diameter. Though they may be large for moons, Jupiter dwarfs them, weighing in at five thousand times more massive and causing them extreme tidal stress. Jupiter is also radioactive, bathing its moons in high-energy electron beams and radio emissions. Read More >

Posted by Jennifer Welsh in 2009, AGU GeoSpace Blog, News Article, Press Release, Space & Astronomy

Photo: Shining Lake Confirms Presence of Liquid on Titan

WIREDScience Blog, December 17th, 2009. 

SAN FRANCISCO – A glint of light from a large lake confirms the presence of surface liquid in Titan’s northern hemisphere. This image, released Thursday here at the American Geophysical Union meeting, was captured on July 8, using the Cassini spacecraft’s visual and infrared mapping spectrometer.

“This one image communicates so much about Titan – thick atmosphere, surface lakes and an otherworldliness,” said Cassini project scientist Bob Pappalardo, of NASA’s Jet Propulsion Laboratory, in a press release. “It’s an unsettling combination of strangeness yet similarity to Earth.” Read More >

Posted by Jennifer Welsh in 2009, Journalism, Space & Astronomy, WIRED Science