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Chance Encounter With Comet Nets Surprising Results
October 1, 2007 — Comets are made of the most primitive stuff in the solar system. As hunks of rock and ice that never coalesced into more planets, they give researchers clues to the evolution of solar systems. So a ... > full story -
Comet Collides With Solar Hurricane
October 1, 2007 — A NASA satellite has captured the first images of a collision between a comet and a solar hurricane. It is the first time scientists have witnessed such an event on another cosmic ... > full story -
Hinode Views 'Magnetic Trilobite' Sunspot
September 19, 2007 — "We've never seen anything quite like it," says solar physicist Lika Guhathakurta from NASA headquarters. Guhathakurta watched in amazement as Saku Tsuneta of Japan played a movie of sunspot 10926 ... > full story -
Scientists Find Elusive Waves In Sun's Corona
August 30, 2007 — Scientists for the first time have observed elusive oscillations in the sun's corona, known as Alfvén waves. The discovery is expected to give researchers more insight into the fundamental ... > full story -
Flares From Sun's Far Side May Affect Space Weather Of Inner Planets
August 24, 2007 — Observations of solar flares by spacecraft at Mars, Venus and the Earth show that eruptions on the far side of the Sun may affect our "space weather" back on Earth. In December 2006, a series of ... > full story -
Hinode Helps Unravel Long-Standing Solar Mysteries
August 22, 2007 — A year after launch, scientists working with Hinode, a Japanese mission with ESA participation, are meeting to discuss latest findings on solar mysteries -- including new insights on solar flares and ... > full story -
In Search Of Interstellar Dragon Fire
August 21, 2007 — Ancient explorers set sail expecting to encounter dragons on the world's unknown oceans. NASA's twin Voyager spacecraft are searching for dragons of a different sort as they enter the boundary of our ... > full story -
Team Discovers 'Throttle' For Solar Wind
May 30, 2007 — Helium may act as a "throttle" for the solar wind, setting its minimum speed, according to new results. The solar wind is a diffuse stream of electrically conducting gas (plasma) constantly blowing ... > full story -
Magnetic Field Uses Sound Waves To Ignite Sun's Ring Of Fire
May 29, 2007 — Sound waves escaping the sun's interior create fountains of hot gas that shape and power a thin region of the sun's atmosphere which appears as a ruby red "ring of fire" around the moon during a ... > full story -
Screaming Coronal Mass Ejections Warn Of Radiation Storms
May 28, 2007 — Some coronal mass ejections (CMEs) produce violent radiation storms, and some do not. The trick is to identify the ones that can produce dangerous radiation, so that astronauts and satellite ... > full story
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