Local Interstellar Cloud
The Local Interstellar Cloud (or Local Fluff or LIC) is the interstellar cloud roughly 30 light years or 9.2 parsecs across through which the Earth's Solar System is currently moving. It is currently unknown if the Sun is embedded in the LIC, or in the region where the LIC is interacting with the neighboring G-cloud. The Solar System is thought to have entered the Local Interstellar Cloud at some time between 44,000 and 150,000 years ago and is expected to remain within it for another 10,000 to 20,000 years. The cloud has a temperature of about 6,000 K, about the same temperature as the surface of the Sun. However, its specific heat capacity is very low because it is not very dense, with 0.3 atoms per cubic centimeter; less dense than the average for the interstellar medium in the Milky Way (0.5 atoms/cm3), though six times denser than the gas in the Local Bubble (0.05 atoms/cm3) which surrounds the local cloud. In comparison, Earth's atmosphere at the edge of space has 12 billion atoms per cubic centimeter, dropping to 52 million at 150 km.
The cloud is flowing outwards from the Scorpius-Centaurus Association, a stellar association that is a star-forming region.
The Local Interstellar Cloud's potential effects on Earth are prevented by the solar wind and the Sun's magnetic field. This interaction with the heliosphere is under study by the Interstellar Boundary Explorer (IBEX), a NASA satellite mapping the boundary between the Solar System and interstellar space.

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Local Interstellar Cloud - Wikipedia, the free encyclopedia
The Local Interstellar Cloud (or Local Fluff or LIC) is the interstellar cloud roughly 30 light years or 9.2 parsecs across through which the Earth's Solar System is ...
en.wikipedia.org/wiki/Local_Interstellar_Cloud
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Local Interstellar Cloud and Galactic…
Illustration courtesy of Linda Huff (American Scientist), Priscilla Frisch (U. Chicago) Though we may have already been inside what is known as the Local Interstellar ...
starburstfound.org/superwaveblog/?p=207
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APOD: 2013 September 24 - The Local Fluff
Sep 24, 2013 ... It can be quite difficult to detect the local ISM because it is so tenuous ... Our Sun may exit the Local Cloud, also called the Local Fluff, during the ...
apod.nasa.gov/apod/ap130924.html
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What do we know about the local…
Our sun is moving through the local interstellar gas cloud approximately into the direction of Scorpio with a speed of about 25 km/sec. As a result of this motion, an ...
www-ssg.sr.unh.edu/ism/LISM.html
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Local Bubble - Wikipedia, the free encyclopedia
The Local Bubble is a cavity in the interstellar medium (ISM) in the Orion Arm of the Milky Way. It contains, among others, the Local Interstellar Cloud and ...
en.wikipedia.org/wiki/Local_Bubble
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Voyager Makes an Interstellar Discovery - NASA Science
Astronomers call the cloud we're running into now the Local Interstellar Cloud or "Local Fluff" for short. It's about 30 light years wide and contains a wispy mixture ...
science1.nasa.gov/science-news/science-at-nasa/2009/23dec_voyager/
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Are we in Danger from a Local Interstellar Cloud Incursion? | The ...
The solar system is currently embedded in the Local Interstellar Cloud, or Local Fluff as it is sometimes called, a gas cloud about 30 light years wide and ...
starburstfound.org/local-interstellar-cloud/
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Starship Asterisk* • View topic - APOD: The Local Fluff (2013 Sep ...
These observations indicate that our Sun is moving through a Local Interstellar Cloud as this cloud flows outwards from the Scorpius-Centaurus ...
asterisk.apod.com/viewtopic.php?f=9&t=32193
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A Change Is in the (Interstellar) Wind | Science/AAAS | News
Sep 5, 2013 ... Its slow journey is taking it though a wispy expanse of gas called the Local Interstellar Cloud. Now, astronomers have discovered signs of ...
news.sciencemag.org/space/2013/09/change-interstellar-wind
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Interstellar cloud - Wikipedia, the free…
Interstellar cloud is the generic name given to an accumulation of gas, plasma and dust in our and other galaxies. Put differently, an interstellar cloud is a denser ...
en.wikipedia.org/wiki/Interstellar_cloud
Search results for "Local Interstellar Cloud"
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Local Interstellar Cloud in science
A Change Is in the (Interstellar) Wind | Science/AAAS | News
Sep 5, 2013 ... NASA/Goddard/Adler/University of Chicago/Wesleyan University ... taking it though a wispy expanse of gas called the Local Interstellar Cloud.
UNH News: Interstellar Winds Buffeting Our Solar System Have ...
Sep 5, 2013... the solar system, including the Local Interstellar Cloud (LIC) and G Cloud, along with ... Image courtesy of P.C. Frisch, University of Chicago.
Voyager Makes an Interstellar Discovery - NASA Science
Astronomers call the cloud we're running into now the Local Interstellar Cloud or ... Credit: Linda Huff (American Scientist) and Priscilla Frisch (University of ...
Local Interstellar Cloud and Galactic Superwave effects on the Earth ...
Feb 9, 2012 ... “Some of those cloudlets might be hundreds of times denser than the local fluff,” says Priscilla Frisch, an astrophysicist at the University of ...
Priscilla C.Frisch Homepage
This page is about local interstellar matter, the heliosphere, the interaction of the solar system ... Keywords: interstellar matter; local fluff; local interstellar matter; heliosphere; ... Department of Astronomy and Astrophysics, University of Chicago  ...
A strange interstellar wind blows through our solar system - Los ...
Sep 6, 2013 ... "Previously we thought the very local interstellar medium was very ... Eberhard Mobius, a University of New Hampshire physics professor and ...
interstellar cloud | 2012 The Awakening
Apr 13, 2012 ... This so-called Local Interstellar Cloud is immersed in a much larger ... Southwest Research Institute, and Boston University suggest that the ...
Will the Sun soon be passing through a dust cloud?
The interstellar medium has a density of about 0.005 atoms/cc, and the Local ... the University of Colorado of 18 nearby stars indicated that the Local Fluff cloud ...
"Local Fluff" a death cloud in space - 12160
Now who came up with the name? local fluff . ... author Merav Opher, a NASA Heliophysics Guest Investigator from George Mason University.
A whiff of interstellar cloud : Nature News & Comment
Feb 1, 2012 ... “It tells us what the present state is of the interstellar medium,” says ... also able to pinpoint the Sun's location at the edge of the Local Cloud.
Books on the term Local Interstellar Cloud
The Heliosphere in the Local Interstellar Medium
The Heliosphere in the Local Interstellar Medium
Rudolf von Steiger, R. Lallement, M.A. Lee, 1996
Small scale structure in local interstellar matter (LISM) is considered. Overall morphology of the local cloud complex is inferred from Ca II absorption lines and observations of H I in white dwarf stars. Clouds with column densities ranging from ...
Local Interstellar Cloud
Local Interstellar Cloud
Frederic P. Miller, Agnes F. Vandome, John McBrewster, 2010
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Universe
Universe
Martin Rees, 2012
From the fiery mass of the Sun's core to the black hole at the center of the Milky Way, Universe takes you on the ultimate guided tour of the cosmos. Full of stunning out-of-this world images reflecting recent advances in space imagery, you'll go on a journey from our solar system all the way to the farthest limits of space. With informat...
Planetary Systems: The Long View
Planetary Systems: The Long View
Ludwik Marian Celnikier, 1998
Considering only possible effects due to encounters with interstellar clouds, stable planetary climates are more likely for inner ... The interstellar cloud surrounding the Sun at this time (known as the "Local Interstellar Cloud", L1C), is warm, low ...
The Local Bubble and Beyond: Lyman-Spitzer-Colloq... (Lecture Notes in Physics)
The Local Bubble and Beyond: Lyman-Spitzer-Colloq... (Lecture Notes in Physics)
Dieter Breitschwerdt, Michael J. Freyberg and Joachim Trümper, 2013
This book gives a comprehensive overview of the current observational and theoretical status in the field of the local and general interstellar medium. It contains contributions presented at the IAU Colloquium No. 166. Review articles and highlight talks will serve both as an introduction to the field for the undergraduate or the non-specialist and...
Extreme Ultraviolet Astronomy
Extreme Ultraviolet Astronomy
Martin A. Barstow, Jay B. Holberg, 2003
7.1 A view of local interstellar space It is generally accepted that the solar system resides inside a relatively dense Local Interstellar Cloud a few parsecs across with a mean neutral hydrogen density of ≈0.1 cm−3 (e.g. Frisch 1994; Gry et al.
Forgotten Civilization: The Role of Solar Outbursts in Our Past and Future
Forgotten Civilization: The Role of Solar Outbursts in Our Past and Future
Robert M. Schoch, 2012
“Schoch is a true scientist, following the data wherever it leads, heedless of political pressures or worn-out paradigms. Twenty-two years ago, his redating of the Sphinx launched the New Archaeology. Forgotten Civilization distills all that has happened since into a simple conclusion: that solar activity ended the last cycle of high culture and ma...
Exploration of the Outer Heliosphere and the Local ...
Exploration of the Outer Heliosphere and the Local ...
Committee on Solar and Space Physics, Space Studies Board, Division on Engineering and Physical Sciences, 2004
Frisch, P.C., D.E. Welty, H.L. Pauls, L.L. Williams, and G. Zank, 1996, Interactions of interstellar gas with G-star winds, Bull. Amer. ... Gloeckler, G., 1996, The abundance of atomic 1 H, 4HE and 3HE in the Local Interstellar Cloud from pickup ion ...
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Blog posts on the term
Local Interstellar Cloud
Local Interstellar Cloud
The Local Interstellar Cloud (or Local Fluff or LIC) is the interstellar cloud roughly 30 light years or 9.2 parsecs across through which the Eart
sciencepenguin.com/local-interstellar-cloud/
Interstellar winds provide rare look at Milky Way's complexity | MNN - Mother Nature Network
Shifting cosmic winds suggest that our solar system lives in a surprisingly complex and dynamic part of the Milky Way.
www.mnn.com/earth-matters/space/stories/interstellar-winds-provide-rare-look-at-milky-ways-complexity
Local Interstellar Cloud and Galactic Superwave effects on the Earth - Starburst Forums: Galactic Superwaves
Illustration courtesy of Linda Huff (American Scientist), Priscilla Frisch (U. Chicago) Though we may have already been inside what is known as the Local Interstellar Cloud for tens or hundreds of thousands of years
starburstfound.org/superwaveblog/?p=207
Are we in Danger from a Local Interstellar Cloud Incursion? | The Starburst Foundation
The solar system is currently embedded in the Local Interstellar Cloud, or Local Fluff as it is sometimes called, a gas cloud about 30 light years wide and travelling past us at 29 km per second. At this speed we should be going through it for the next 300,000 years. It has been suggested that this cloud may contain cloudlets having gas densities hundreds of times higher than the Local Interstellar Cloud average. How far away they may lie from the solar system or when they will impact us remains open to speculation. But, one might ask how likely it is that the solar system’s movement through such a high density region will affect the Sun and Earth, whether it will impact us in a way similar to how a superwave has done in the past?
starburstfound.org/local-interstellar-cloud/
Sciency Words: Local Fluff | Planet Pailly
Science fiction uses scientific language as a form of artistic expression. With that in mind, today’s post is part of a series here on Planet Pailly called Sciency Words. Every Friday, I’ll bring you a new and interesting scientific word to help us all expand our scientific vocabularies together. Today’s word is: LOCAL FLUFF Yes,…
planetpailly.wordpress.com/2013/12/06/sciency-words-local-fluff/
Has IBEX detected eddies in the spacetime continuum? | astrobites
Douglas Adams' fictional Ford Prefect famously warned us of eddies in the spacetime continuum. Has the IBEX spacecraft now found evidence that they really exist?
astrobites.org/2013/10/28/has-ibex-detected-eddies-in-the-spacetime-continuum/
Astrophysicists: Interstellar Winds Changed Direction over Forty Years | Space Exploration | Sci-News.com
The particles streaming into the Solar System from interstellar space have changed direction over the last forty years.
www.sci-news.com/space/science-interstellar-winds-direction-01363.html
Voyager tells us we live in a “fluffy” interstellar cloud | Watts Up With That?
December 23, 2009: 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…
wattsupwiththat.com/2009/12/26/voyager-tells-us-we-live-in-a-fluffy-interstellar-cloud/
Interstellar winds buffeting our solar system have shifted direction
Scientists, including University of New Hampshire astrophysicists involved in NASA's Interstellar Boundary Explorer (IBEX) mission, have discovered that the particles streaming into the solar system from interstellar space have likely changed direction over the last 40 years.
phys.org/news/2013-09-interstellar-buffeting-solar-shifted.html
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