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Latest Heliosphere Stories

8f3b249666423d1690b56347121c5da71
2009-06-30 14:00:00

Scientists said goodbye to the Ulysses solar probe on Tuesday, following 18 years of activity.

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2009-06-18 11:26:26

NASA's Interstellar Boundary Explorer (IBEX) spacecraft has made the first observations of very fast hydrogen atoms coming from the moon, following decades of speculation and searching for their existence.

f4b7c192b199f60b7e5594ab38e83daf1
2008-10-20 14:45:00

NASA is sending a small spacecraft on a two-year mission that will give scientists their first view of the outermost reaches of our solar system.

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2008-10-06 13:35:00

The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The two-year mission will begin from the Kwajalein Atoll, a part of the Marshall Islands in the Pacific Ocean.

e62e932288776ae6bbe89b2ff278508a1
2008-09-23 15:05:00

Data from the Ulysses spacecraft, a joint NASA-European Space Agency mission, show the sun has reduced its output of solar wind to the lowest levels since accurate readings became available. The sun's current state could reduce the natural shielding that envelops our solar system.

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2008-07-28 08:50:00

Just as an impressionist artist makes an image from countless tiny strokes of paint, NASA’s new Interstellar Boundary Explorer (IBEX) spacecraft will build up an image of the termination shock and areas beyond by using hits from high-speed atoms that are radiating out of this region.

35bc7c706f3988cab0521394aaeb1368
2008-07-09 10:15:00

NASA's sun-focused STEREO spacecraft unexpectedly detected particles from the edge of the solar system last year, allowing University of California, Berkeley, scientists to map for the first time the energized particles in the region where the hot solar wind slams into the cold interstellar medium.

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2008-07-02 15:05:00

Scientists using data from NASA's Voyager 2 spacecraft have observed the bubble of solar wind surrounding the solar system is not round, but has a squashed shape, according to recent data.

e3d7303907d1a38bcb2b0fb13b171c87
2008-07-02 14:05:00

NASA’s Solar Shield experiment explores how timely space weather forecasts can help power companies keep the power flowing to the many appliances and electronic gadgets we rely on every day.

d536362440b7ca36d7c0d8ac8e58ebf9
2008-07-02 13:50:00

NASA's sun-focused Solar Terrestrial Relations Observatory, or STEREO, twin spacecraft unexpectedly detected particles from the edge of the solar system last year.


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
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
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