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NASA gives go-ahead to mission to explore comets

The Cornell University-led Comet Nucleus Tour mission aims to conduct close-proximity comet flybys, studying the comets' geology and composition. The spacecraft will be launched in July 2002 and explore Comets Encke, Schwassmann-Wachmann-3, and potentially others.

High Wire Act May Be The Best Way To Explore Europa

Researchers propose using an electrodynamic tether to propel and power a Europa orbiter, potentially reducing propellant needs and costs. The concept is still in its infancy, with challenges including Jupiter's dynamic environment and the need for sophisticated controls.

Amorphous Silicon-Based Solar Cells Come Into Their Own

Researchers have developed methods to improve efficiency and stability of amorphous silicon solar cells, enabling mass production. Stacking solar cells on panels has increased conversion of sunlight to power, with efficiencies reaching over 14 percent.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

System To Improve Solar-Car Function May Work On Home Appliances

A University of Illinois professor and his students have developed a power-tracking circuit that maximizes electrical power-conversion process efficiency. The circuit automatically adjusts to provide maximum energy out of solar cells for various applications, including large home appliances.