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Latest Heliosphere Stories

76fed687c9d49140c38798fc44c296b71
2010-05-07 08:35:00

Engineers have shifted NASA's Voyager 2 spacecraft into a mode that transmits only spacecraft health and status data while they diagnose an unexpected change in the pattern of returning data. Preliminary engineering data received on May 1 show the spacecraft is basically healthy, and that the source of the issue is the flight data system, which is responsible for formatting the data to send back to Earth. The change in the data return pattern has prevented mission managers from decoding...

2010-02-11 12:57:00

PALO ALTO, Calif., Feb. 11 /PRNewswire/ -- Two state-of-the art solar instruments built at the Solar and Astrophysics Laboratory of the Lockheed Martin (NYSE: LMT) Advanced Technology Center (ATC) in Palo Alto, were launched this morning at 10:23 a.m. EST aboard a United Launch Alliance Atlas V rocket. The Atmospheric Imaging Assembly (AIA), a suite of four telescopes, will provide an unprecedented view of the solar corona, taking images that span at least 1.3 solar diameters in multiple...

2010-02-03 08:00:00

PALO ALTO, Calif., Feb. 3 /PRNewswire/ -- Two state-of-the art solar instruments built at the Solar and Astrophysics Laboratory of the Lockheed Martin (NYSE: LMT) Advanced Technology Center (ATC) in Palo Alto are awaiting launch on Feb. 9, 2010 aboard a United Launch Alliance Atlas V rocket. The Atmospheric Imaging Assembly (AIA), a suite of four telescopes, will provide an unprecedented view of the solar corona, taking images that span at least 1.3 solar diameters in multiple wavelengths...

88edd3e77223dd8fc7f99afbbba61e6c1
2010-01-12 23:10:00

Ever since NASA's Interstellar Boundary Explorer, or IBEX, mission scientists released the first comprehensive sky map of our solar system's edge in particles, solar physicists have been busy revising their models to account for the discovery of a narrow "ribbon" of bright emission that was completely unexpected and not predicted by any model at the time. Further study by a team of scientists funded through NASA's Heliophysics Guest Investigator program has produced a revised model that...

05eb230206e60ea5065e9b0a2c3954781
2009-12-23 13:41:57

The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery. "Using data from Voyager, we have discovered a strong magnetic field just outside the solar system," explains lead author Merav Opher, a NASA Heliophysics Guest Investigator from George Mason University. "This magnetic field holds the interstellar cloud together and solves the...

89074864b7b9a697108bc3205cfb7d5f1
2009-11-20 09:10:29

When NASA's Cassini spacecraft began orbiting Saturn five years ago, a dozen highly-tuned science instruments set to work surveying, sniffing, analyzing and scrutinizing the Saturnian system. But Cassini recently revealed new data that appeared to overturn the decades-old belief that our solar system resembled a comet in shape as it moves through the interstellar medium (the matter between stars in our corner of the Milky Way galaxy). Instead, the new results suggest our heliosphere more...

3520a7f9d58d7342b6196f7f3cbe9af71
2009-10-16 07:20:00

Images from the Ion and Neutral Camera on NASA's Cassini spacecraft suggest that the heliosphere, the region of the sun's influence, may not have the comet-like shape predicted by existing models. In a paper published Oct. 15 in Science Express, researchers from the Johns Hopkins Applied Physics Laboratory present a new view of the heliosphere, and the forces that shape it. "These images have revolutionized what we thought we knew for the past 50 years; the sun travels through the galaxy not...

d8dc3be4ef6387e16b81e543c71e4fa21
2009-10-16 06:50:00

NASA's Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky Way galaxy. The new view will change the way researchers view and study the interaction between our galaxy and sun. The sky map was produced with data that two detectors on the spacecraft collected during six months of observations. The detectors measured and counted particles scientists refer to as...

2009-10-15 13:00:00

PALO ALTO, Calif., Oct. 15 /PRNewswire/ -- Nearly a year ago - on October 19, 2008 - the Interstellar Boundary Explorer (IBEX) - a NASA Small Explorer Mission - was launched into Earth orbit to discover the global interaction between the solar wind and the interstellar medium - the gas, dust and radiation environment between the stars - by measuring the neutral atoms created by that interaction. As our Sun travels through the galaxy it is encompassed in a giant bubble inflated by a...

15c842b0d10c5385117cae9b262d29721
2009-09-29 12:30:00

Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high. "In 2009, cosmic ray intensities have increased 19% beyond anything we've seen in the past 50 years," says Richard Mewaldt of Caltech. "The increase is significant, and it could mean we need to re-think how much radiation shielding astronauts take with them on deep-space missions." The cause of the surge is solar...


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
conjunto
  • A style of popular dance music originating along the border between Texas and Mexico, characterized by the use of accordion, drums, and 12-string bass guitar and traditionally based on polka, waltz, and bolero rhythms.
The word 'conjunto' comes through Spanish, from Latin coniūnctus, past participle of coniungere, to join together; see conjoin