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Universe
Feb 22, 1999

emission." The differing sensitivity of x-rays and radio waves to gas density means that scientists can measure the size and mass of a cluster by combining x-ray and radio...

Universe
Sep 19, 2001

study Borrelly," Rayman says. For instance, ion engine diagnostic sensors will "listen" for plasma waves in the gaseous coma and attempt to detect the comet's magnetic field...

Earth
Jun 27, 2001

in the northern United States that the price of oil dropped because of lower demand for heating oil. El Niños also suppress destructive Atlantic and Gulf hurricanes. And west...

Earth
Apr 8, 1999

power would be needed to run the system. "If you're pushing terawatts into space," Landis said of the beaming system, "it's expensive." A lens to focus the millimeter...

Universe
Aug 26, 1999

chunk of space" that could hold our entire galaxy. By contrast, the central source is no larger than our solar system.   Right: PKS 0637-752 seen in radio waves by...

Universe
Oct 15, 1999

thinking that perhaps the shock waves from gamma-ray bursts could even play a role in planetary formation? Fishman: A recent paper has speculated that perhaps a very large...

Sep 9, 2016

Cassini-Huygens mission made a grand entry with a 96-minute engine burn and dramatic crossing of the rings. Dozens of stunning ring images showed hundreds of ringlets, waves...

Universe, Sun
Oct 12, 1999

maximum (called second contact). Very small pressure waves due to this cool air can even be measured by some microbarometers (0.002% atmospheric pressure change). Often...

Space Experiments
Feb 22, 2022

Foundational - Cross Cutting Technology Investments for Navigation and Science Coherent Matter Waves in Extended Free Fall Compact Ultrastable Lasers Supporting Fundamental...

Jan 23, 2008

Agency and Italian Space Agency Cassini-Huygens mission made a grand entry with a 96-minute engine burn and dramatic crossing of the rings. Dozens of stunning ring images...

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