"U.S. scientists are delighted the
The ultraviolet imaging spectrograph, called Alice, will analyze gases in the tail of the comet, as well as the coma, the fuzzy envelope around the nucleus of the comet. The coma develops as a comet approaches the sun. Alice also will measure the rate at which the comet produces water, carbon monoxide and carbon dioxide. These measurements will provide valuable information about the surface composition of the nucleus. The instrument also will measure the amount of argon present, an important clue about the temperature of the solar system at the time the comet's nucleus originally formed more than 4.6 billion years ago.
The Microwave Instrument for Rosetta Orbiter will identify chemicals on or near the comet's surface and measure the temperature of the chemicals and the dust and ice jetting out from the comet. The instrument also will see the gaseous activity in the tail through coma.
The Ion and Electron Sensor is part of a suite of five instruments to analyze the plasma environment of the comet, particularly the coma. The instrument will measure the charged particles in the sun s outer atmosphere, or solar wind, as they interact with the gas flowing out from the comet while
Most Popular Stories
- High-Tech Home Theaters Undergoing a Revolution
- Amazon Prime Grabs Classic HBO TV Series
- Sales of New Homes Fell 14.5 Percent in March
- Procter & Gamble Income Up on Cost Cutting
- Obama Opens Japan Trip with Sushi Stop
- Boeing Flying High With Strong First Quarter
- Hollywood Bets Big Again on Summer Movies
- Google, SunPower Team Up on Solar Power
- FedEx Sued Over Deadly California Bus Crash
- Nestle, Superior Grocers Promote Healthy Meals