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Latest Heliosphere Stories

2b49128d93bef66401fa42dac47b147e1
2011-02-18 09:35:57

Close to the globe, Earth's magnetic field wraps around the planet like a gigantic spherical web, curving in to touch Earth at the poles. But this isn't true as you get further from the planet. As you move to the high altitudes where satellites fly, nothing about that field is so simple. Instead, the large region enclosed by Earth's magnetic field, known as the magnetosphere, looks like a long, sideways jellyfish with its round bulb facing the sun and a long tail extending away from the sun....

2010-12-13 14:47:00

PASADENA, Calif., Dec. 13, 2010 /PRNewswire-USNewswire/ -- The 33-year odyssey of NASA's Voyager 1 spacecraft has reached a distant point at the edge of our solar system where there is no outward motion of solar wind. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Now hurtling toward interstellar space some 10.8 billion miles from the sun, Voyager 1 has crossed into an area where the velocity of the hot ionized gas, or plasma, emanating directly outward from the sun has...

3675838adcd4abc639cc2bb06165ee1b1
2010-12-13 14:55:00

The 33-year odyssey of NASA's Voyager 1 spacecraft has reached a distant point at the edge of our solar system where there is no outward motion of solar wind. Now hurtling toward interstellar space some 10.8 billion miles from the sun, Voyager 1 has crossed into an area where the velocity of the hot ionized gas, or plasma, emanating directly outward from the sun has slowed to zero. Scientists suspect the solar wind has been turned sideways by the pressure from the interstellar wind in the...

2010-12-13 12:00:00

PALO ALTO, Calif., Dec. 13, 2010 /PRNewswire/ -- A serendipitous alignment of high-powered spaceborne solar instruments-designed and built by Lockheed Martin (NYSE: LMT)-has finally provided the data allowing scientists to uncover the physical mechanism behind so-called "sympathetic flares" on the Sun. For over 75 years, solar physicists have been observing near-synchronous explosions in the solar atmosphere, and have wondered whether they were somehow related, but hard evidence for...

070500a597f0b294846863a36187150d
2010-10-07 10:39:18

A University of Delaware researcher is helping to design instruments for a robotic space probe that will go where no other has gone before: the sun. William Matthaeus, professor of physics and astronomy at UD, is involved in NASA's Solar Probe Plus project, which is slated to launch by 2018. The unmanned spacecraft, the size of a small car, will plunge directly into the sun's atmosphere to help uncover answers to perplexing mysteries about the fiery ball of plasma at the center of our solar...

2010-09-30 11:00:00

WASHINGTON, Sept. 30 /PRNewswire-USNewswire/ -- New data from NASA's Interstellar Boundary Explorer, or IBEX, spacecraft, reveal that conditions at the edge of our solar system may be much more dynamic than previously thought. Future exploration missions will benefit in design and mission objectives from a better understanding of the changing conditions in this outer region of our solar system. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo:...

ec5010798309abba46850877ae4428031
2010-09-30 11:45:36

When NASA launched the Interstellar Boundary Explorer (IBEX) on October 19, 2008, space physicists held their collective breath for never-before-seen views of a collision zone far beyond the planets, roughly 10 billion miles away. That's where the solar wind, an outward rush of charged particles and magnetic fields continuously spewed by the Sun, runs into the flow of particles and fields that permeates interstellar space in our neighborhood of the Milky Way galaxy. No spacecraft had ever...

00bcfdae77e4e804ca181de21360c3031
2010-08-16 12:35:00

Imagine floating 35,000 miles above the sunny side of Earth. Our home planet gleams below, a majestic whorl of color and texture. All seems calm around you. With no satellites or space debris to dodge, you can just relax and enjoy the black emptiness of space. But looks can be deceiving. In reality, you've unknowingly jumped into an invisible mosh pit of electromagnetic mayhem "” the place in space where a supersonic "wind" of charged particles from the Sun crashes head-on into the...

2010-08-16 09:00:00

PALO ALTO, Calif., Aug. 16 /PRNewswire/ -- It has long been known that the Earth's magnetic field provides a protective barrier for life on Earth. As energetic particles stream outward from the Sun in the form of the solar wind, they are deflected by a "force field" created by the Earth's magnetosphere. Now, a team of scientists from the Southwest Research Institute (SwRI) in San Antonio, Texas, the Lockheed Martin (NYSE: LMT) Space Systems Company Advanced Technology Center (ATC) in Palo...

43c982d37d938535d3732966f3bd01eb1
2010-06-29 09:55:00

NASA's plucky Voyager 2 spacecraft hit a long-haul operations milestone June 28 -- operating continuously for 12,000 days. For nearly 33 years, the venerable spacecraft has been returning data about the giant outer planets, and the characteristics and interaction of solar wind between and beyond the planets. Among its many findings, Voyager 2 discovered Neptune's Great Dark Spot and its 450-meter-per-second (1,000-mph) winds. The two Voyager spacecraft have been the longest continuously...


Latest Heliosphere Reference Libraries

6_02132514ceb20be8f009384c891c09472
2004-10-19 04:45:41

Heliopause -- The heliopause is the boundary where our Sun's solar wind is stopped by the interstellar medium. The solar wind blows a "bubble" in the interstellar medium (the rareified hydrogen and helium gas that permeates the galaxy). The point where the solar wind's strength is no longer great enough to push back the interstellar medium is known as the heliopause, and is often considered to be the outer "border" of the solar system. The distance to the heliopause is not precisely...

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Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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