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Sep 9, 2016

, beginning a days-long "proton storm" that altered existing theories about the origin of proton storms around Earth. "Since about 1990, we've believed that proton storms at...

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...

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...

Earth
Aug 12, 1998

ultimately do most of the damage either directly or by driving waves ashore to form a storm surge. To measure that energy exchange in seemingly clear air as well as in...

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...

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, Earth
Jun 6, 2001

6th to 12th grade classroom? These lessons might help: X-ray Flash Cards: What are x-rays? Like visible light and radio waves, hard x-rays are just another part of the...

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...

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