Galileo Finds Veritable Chemical Factory On Europa
News story originally written on March 29, 1999
Scientists have recently discovered hydrogen peroxide on Europa
, adding a new chemical to the
list which already includes sulfur dioxide, water ice, carbon dioxide, and
possibly salt molecules containing water.
"We expect to find more bizarre materials on Europa, because it's
constantly bombarded by Jupiter's intense particle radiation environment,"
said Dr. Robert Carlson, principal investigator for Galileo's
near-infrared mapping spectrometer.
Hydrogen peroxide is a reactive chemical that isn't found naturally on the
Earth's surface. Although they are continually being formed, the
molecules only last for a matter of
weeks on Europa before they break down.
Shop Windows to the Universe Science Store!
Our online store
on science education, ranging from evolution
, classroom research
, and the need for science and math literacy
You might also be interested in:
Europa was first discovered by Galileo Galilei in 1610, making it one of the Galilean Satellites. Europa is Jupiter's 4th largest moon, 670,900 km from Jupiter. With a diameter that is about half the distance...more
The picture to the left shows examples of the many amazing different surface features of Europa. Many exciting discoveries were made about Europa during the Galileo mission. The surface of Europa is unusual,...more
It was another exciting and frustrating year for the space science program. It seemed that every step forward led to one backwards. Either way, NASA led the way to a great century of discovery. Unfortunately,...more
The Space Shuttle Discovery lifted off from Kennedy Space Center at 2:19 p.m. EST, October 29th. The sky was clear and the weather was great as Discovery took 8 1/2 minutes to reach orbit for the Unitied...more
A moon was discovered orbiting the asteroid, Eugenia. This is only the second time in history that a satellite has been seen circling an asteroid. A special mirror allowed scientists to find the moon...more
Will Russia ever put the service module for the International Space Station in space? NASA officials are demanding an answer from the Russian government. The necessary service module is currently waiting...more
During a period of about two days in early May, 1998, the ACE spacecraft was immersed in plasma associated with a coronal mass ejection (CME). The SWICS instrument on ACE, which determines unambiguously...more