Saturn’s Hexagon

How To Help Your Anxious Partner — And Yourself

Living with anxiety can be tough — your thoughts might race, you might dread tasks others find simple (like driving to work) and your worries might feel inescapable. But loving someone with anxiety can be hard too. You might feel powerless to help or overwhelmed by how your partner’s feelings affect your daily life.

If so, you’re not alone: Multiple studies have shown that anxiety disorders may contribute to marital dissatisfaction.

“We often find that our patients’ … partners are somehow intertwined in their anxiety,” says Sandy Capaldi, associate director at the Center for the Treatment and Study of Anxiety at the University of Pennsylvania.

Anxiety is experienced at many different levels and in different forms — from moderate to debilitating, from generalized anxiety to phobias — and its impacts can vary. But psychiatrists and therapists say there are ways to help your partner navigate challenges while you also take care of yourself.

Read the full story here

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Jeff Williams: Record Breaker

Astronaut becomes U.S. record holder for most cumulative time in space!

The Olympics are over, but Americans are STILL breaking records. NASA astronaut Jeff Williams just broke Scott Kelly’s record of 520 cumulative days spent in space. When Williams returns to Earth on Sept. 5, he will have racked up 534 days in space. To celebrate this amazing achievement, here are some of the best images taken during his four spaceflights.

STS-101 Atlantis:

During May 2000, Williams made his first spacewalk during space shuttle Atlantis’ STS-101 mission. On this 10-day mission, Williams’ first spacewalk lasted nearly seven hours. He is pictured here outside the space station.

Expedition 13:

Williams experienced his first long-duration mission in 2006, when he served as flight engineer for Expedition 13 space station mission. During his time in orbit, he performed two spacewalks, saw the arrival of two space shuttle missions and resumed construction of the orbiting laboratory during his six-month tour. While on one of those spacewalks, Williams took this selfie.

Expedition 21/22:

Williams returned to space for another six-month mission in 2009 as a flight engineer on Expedition 21 and commander of Expedition 22. During that time, he hosted the crews of two space shuttle missions. The U.S.-built Tranquility module and cupola were installed on station. Here is an image of the then newly installed cupola.

Expedition 47/48:

This time around, Williams has been onboard the space station since March 2016, where he served as flight engineer for Expedition 47 and now commands Expedition 48. With over 7,000 retweets on Williams’ photo of an aurora from space, his Twitter followers were clearly impressed with his photography skills.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com 

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WOW!!

This computer-simulated image shows a supermassive black hole at the core of a galaxy. The black region in the center represents the black hole’s event horizon, where no light can escape the massive object’s gravitational grip. The black hole’s powerful gravity distorts space around it like a funhouse mirror. Light from background stars is stretched and smeared as the stars skim by the black hole.

Credits: NASA, ESA, and D. Coe, J. Anderson, and R. van der Marel (STScI)

Full Story at Hubble Space Telescope/NASA.- Behemoth Black Hole Found in an Unlikely Place

High-res images at HubbleSite.org

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A still from the new simulation of solar magnetic activity. Red and yellow colors show where the magnetic field is flowing upward, while blue colors show it moving downward.

Via Popular Science: This Is The Best Model Of The Sun’s Magnetic Field, And It’s Hypnotizing

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Sleep is your superpower | Matt Walker

Sleep is your life-support system and Mother Nature’s best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get sleep – and the alarmingly bad things that happen when you don’t, for both your brain and body. Learn more about sleep’s impact on your learning, memory, immune system and even your genetic code – as well as some helpful tips for getting some shut-eye.

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The maximum life span is a theoretical number whose exact value cannot be determined from existing knowledge about an organism; it is often given as a rough estimate based on the longest lived organism of its species known to date. A more meaningful measure is the average life span; this is a statistical concept that is derived by the analysis of mortality data for populations of each species. A related term is the expectation of life. Life expectancy represents the average number of years that a group of persons, all born at the same time, might be expected to live, and it is based on the changing death rate over many past years.

The concept of life span implies that there is an individual whose existence has a definite beginning and end. What constitutes the individual in most cases presents no problem: among organisms that reproduce sexually the individual is a certain amount of living substance capable of maintaining itself alive and endowed with hereditary features that are in some measure unique. In some organisms, however, extensive and apparently indefinite growth takes place and reproduction may occur by division of a single parent organism, as in many protists, including bacteria, algae, and protozoans. In order to consider life span in such organisms, the individual must be defined arbitrarily since the organisms are continually dividing. In a strict sense, the life spans in such instances are not comparable to those forms that are sexually produced.

There is a brief period during which it is impossible to say whether an organism is still alive, but this time is so short relative to the total length of life that it creates no great problem in determining life span.

Some organisms seem to be potentially immortal. Unless an accident puts an end to life, they appear to be fully capable of surviving indefinitely. This faculty has been attributed to certain fishes and reptiles, which appear to be capable of unlimited growth. Without examining the various causes of death in detail, a distinction can be made between death as a result of internal changes (i.e., aging) and death as a result of some purely external factor, such as an accident. It is notable that the absence of aging processes is correlated with the absence of individuality. In other words, organisms in which the individual is difficult to define, as in colonial forms, appear not to age.

[Continue Reading→]

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Images taken by the International Space Station

images here

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Could dark energy be caused by frozen neutrinos?

“Since its discovery in 1998, the accelerated expansion has lacked a compelling, simple explanation that didn’t hypothesize a completely new set of forces, properties or interactions. If you wanted a scalar field — a quintessence model — it had to be finely tuned. But in a very clever paper just submitted yesterday by Fergus Simpson, Raul Jimenez, Carlos Pena-Garay, and Licia Verde, they note that if a generic scalar field couples to the neutrinos we have in our Universe, that fine-tuning goes away, and that scalar field will automatically begin behaving as a cosmological constant: as energy inherent to space itself.”

The accelerated expansion of our Universe was one of the biggest surprise discoveries of all-time, and something that still lacks a good physical explanation. While many models of dark energy exist, it remains a completely phenomenological study: everything appears consistent with a cosmological constant, but nothing appears to be a good motivator for why the Universe should have one. Until now, that is! In a new paper by Fergus Simpson, Raul Jimenez, Carlos Pena-Garay and Licia Verde, they note that any generic scalar field that couples to the neutrino sector would dynamically and stably give rise to a type of dark energy that’s indistinguishable from what we’ve observed. The huge advance is that this scenario doesn’t require any fine-tuning, thanks to this dark energy arising from neutrinos “freezing,” or becoming non-relativistic. In addition, there are experimental signatures to look for to confirm it, too, in the form of neutrinoless double-beta decay!

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FAMOUS AUTHORS

Classic Bookshelf: This site has put classic novels online, from Charles Dickens to Charlotte Bronte.

The Online Books Page: The University of Pennsylvania hosts this book search and database.

Project Gutenberg: This famous site has over 27,000 free books online.

Page by Page Books: Find books by Sir Arthur Conan Doyle and H.G. Wells, as well as speeches from George W. Bush on this site.

Classic Book Library: Genres here include historical fiction, history, science fiction, mystery, romance and children’s literature, but they’re all classics.

Classic Reader: Here you can read Shakespeare, young adult fiction and more.

Read Print: From George Orwell to Alexandre Dumas to George Eliot to Charles Darwin, this online library is stocked with the best classics.

Planet eBook: Download free classic literature titles here, from Dostoevsky to D.H. Lawrence to Joseph Conrad.

The Spectator Project: Montclair State University’s project features full-text, online versions of The Spectator and The Tatler.

Bibliomania: This site has more than 2,000 classic texts, plus study guides and reference books.

Online Library of Literature: Find full and unabridged texts of classic literature, including the Bronte sisters, Mark Twain and more.

Bartleby: Bartleby has much more than just the classics, but its collection of anthologies and other important novels made it famous.

Fiction.us: Fiction.us has a huge selection of novels, including works by Lewis Carroll, Willa Cather, Sherwood Anderson, Flaubert, George Eliot, F. Scott Fitzgerald and others.

Free Classic Literature: Find British authors like Shakespeare and Sir Arthur Conan Doyle, plus other authors like Jules Verne, Mark Twain, and more.

TEXTBOOKS

Textbook Revolution: Find biology, business, engineering, mathematics and world history textbooks here.

Wikibooks: From cookbooks to the computing department, find instructional and educational materials here.

KnowThis Free Online Textbooks: Get directed to stats textbooks and more.

Online Medical Textbooks: Find books about plastic surgery, anatomy and more here.

Online Science and Math Textbooks: Access biochemistry, chemistry, aeronautics, medical manuals and other textbooks here.

MIT Open Courseware Supplemental Resources: Find free videos, textbooks and more on the subjects of mechanical engineering, mathematics, chemistry and more.

Flat World Knowledge: This innovative site has created an open college textbooks platform that will launch in January 2009.

Free Business Textbooks: Find free books to go along with accounting, economics and other business classes.

Light and Matter: Here you can access open source physics textbooks.

eMedicine: This project from WebMD is continuously updated and has articles and references on surgery, pediatrics and more.

MATH AND SCIENCE

FullBooks.com: This site has “thousands of full-text free books,” including a large amount of scientific essays and books.

Free online textbooks, lecture notes, tutorials and videos on mathematics: NYU links to several free resources for math students.

Online Mathematics Texts: Here you can find online textbooks likeElementary Linear Algebra and Complex Variables.

Science and Engineering Books for free download: These books range in topics from nanotechnology to compressible flow.

FreeScience.info: Find over 1800 math, engineering and science books here.

Free Tech Books: Computer programmers and computer science enthusiasts can find helpful books here.

CHILDREN’S BOOKS

byGosh: Find free illustrated children’s books and stories here.

Munseys: Munseys has nearly 2,000 children’s titles, plus books about religion, biographies and more.

International Children’s Digital Library: Find award-winning books and search by categories like age group, make believe books, true books or picture books.

Lookybook: Access children’s picture books here.

PHILOSOPHY AND RELIGION

Bored.com: Bored.com has music ebooks, cooking ebooks, and over 150 philosophy titles and over 1,000 religion titles.

Ideology.us: Here you’ll find works by Rene Descartes, Sigmund Freud, Karl Marx, David Hume and others.

Free Books on Yoga, Religion and Philosophy: Recent uploads to this site include Practical Lessons in Yoga and Philosophy of Dreams.

The Sociology of Religion: Read this book by Max Weber, here.

Religion eBooks: Read books about the Bible, Christian books, and more.

PLAYS

ReadBookOnline.net: Here you can read plays by Chekhov, Thomas Hardy, Ben Jonson, Shakespeare, Edgar Allan Poe and others.

Plays: Read Pygmalion, Uncle Vanya or The Playboy of the Western World here.

The Complete Works of William Shakespeare: MIT has made available all of Shakespeare’s comedies, tragedies, and histories.

Plays Online: This site catalogs “all the plays [they] know about that are available in full text versions online for free.”

ProPlay: This site has children’s plays, comedies, dramas and musicals.

MODERN FICTION, FANTASY AND ROMANCE

Public Bookshelf: Find romance novels, mysteries and more.

The Internet Book Database of Fiction: This forum features fantasy and graphic novels, anime, J.K. Rowling and more.

Free Online Novels: Here you can find Christian novels, fantasy and graphic novels, adventure books, horror books and more.

Foxglove: This British site has free novels, satire and short stories.

Baen Free Library: Find books by Scott Gier, Keith Laumer and others.

The Road to Romance: This website has books by Patricia Cornwell and other romance novelists.

Get Free Ebooks: This site’s largest collection includes fiction books.

John T. Cullen: Read short stories from John T. Cullen here.

SF and Fantasy Books Online: Books here include Arabian Nights,Aesop’s Fables and more.

Free Novels Online and Free Online Cyber-Books: This list contains mostly fantasy books.

FOREIGN LANGUAGE

Project Laurens Jz Coster: Find Dutch literature here.

ATHENA Textes Francais: Search by author’s name, French books, or books written by other authors but translated into French.

Liber Liber: Download Italian books here. Browse by author, title, or subject.

Biblioteca romaneasca: Find Romanian books on this site.

Bibliolteca Virtual Miguel de Cervantes: Look up authors to find a catalog of their available works on this Spanish site.

KEIMENA: This page is entirely in Greek, but if you’re looking for modern Greek literature, this is the place to access books online.

Proyecto Cervantes: Texas A&M’s Proyecto Cervantes has cataloged Cervantes’ work online.

Corpus Scriptorum Latinorum: Access many Latin texts here.

Project Runeberg: Find Scandinavian literature online here.

Italian Women Writers: This site provides information about Italian women authors and features full-text titles too.

Biblioteca Valenciana: Register to use this database of Catalan and Valencian books.

Ketab Farsi: Access literature and publications in Farsi from this site.

Afghanistan Digital Library: Powered by NYU, the Afghanistan Digital Library has works published between 1870 and 1930.

CELT: CELT stands for “the Corpus of Electronic Texts” features important historical literature and documents.

Projekt Gutenberg-DE: This easy-to-use database of German language texts lets you search by genres and author.

HISTORY AND CULTURE

LibriVox: LibriVox has a good selection of historical fiction.

The Perseus Project: Tufts’ Perseus Digital Library features titles from Ancient Rome and Greece, published in English and original languages.

Access Genealogy: Find literature about Native American history, the Scotch-Irish immigration in the 19th and 20th centuries, and more.

Free History Books: This collection features U.S. history books, including works by Paul Jennings, Sarah Morgan Dawson, Josiah Quincy and others.

Most Popular History Books: Free titles include Seven Days and Seven Nights by Alexander Szegedy and Autobiography of a Female Slave by Martha G. Browne.

RARE BOOKS

Questia: Questia has 5,000 books available for free, including rare books and classics.

ARTS AND ENTERTAINMENT

Books-On-Line: This large collection includes movie scripts, newer works, cookbooks and more.

Chest of Books: This site has a wide range of free books, including gardening and cooking books, home improvement books, craft and hobby books, art books and more.

Free e-Books: Find titles related to beauty and fashion, games, health, drama and more.

2020ok: Categories here include art, graphic design, performing arts, ethnic and national, careers, business and a lot more.

Free Art Books: Find artist books and art books in PDF format here.

Free Web design books: OnlineComputerBooks.com directs you to free web design books.

Free Music Books: Find sheet music, lyrics and books about music here.

Free Fashion Books: Costume and fashion books are linked to the Google Books page.

MYSTERY

MysteryNet: Read free short mystery stories on this site.

TopMystery.com: Read books by Edgar Allan Poe, Sir Arthur Conan Doyle, GK Chesterton and other mystery writers here.

Mystery Books: Read books by Sue Grafton and others.

POETRY

The Literature Network: This site features forums, a copy of The King James Bible, and over 3,000 short stories and poems.

Poetry: This list includes “The Raven,” “O Captain! My Captain!” and “The Ballad of Bonnie and Clyde.”

Poem Hunter: Find free poems, lyrics and quotations on this site.

Famous Poetry Online: Read limericks, love poetry, and poems by Robert Browning, Emily Dickinson, John Donne, Lord Byron and others.

Google Poetry: Google Books has a large selection of poetry, fromThe Canterbury Tales to Beowulf to Walt Whitman.

QuotesandPoem.com: Read poems by Maya Angelou, William Blake, Sylvia Plath and more.

CompleteClassics.com: Rudyard Kipling, Allen Ginsberg and Alfred Lord Tennyson are all featured here.

PinkPoem.com: On this site, you can download free poetry ebooks.

MISC

Banned Books: Here you can follow links of banned books to their full text online.

World eBook Library: This monstrous collection includes classics, encyclopedias, children’s books and a lot more.

DailyLit: DailyLit has everything from Moby Dick to the recent phenomenon, Skinny Bitch.

A Celebration of Women Writers: The University of Pennsylvania’s page for women writers includes Newbery winners.

Free Online Novels: These novels are fully online and range from romance to religious fiction to historical fiction.

ManyBooks.net: Download mysteries and other books for your iPhone or eBook reader here.

Authorama: Books here are pulled from Google Books and more. You’ll find history books, novels and more.

Prize-winning books online: Use this directory to connect to full-text copies of Newbery winners, Nobel Prize winners and Pulitzer winners.

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MARTIAN STORMS - Seen in 1977 by the Viking 2 Orbiter

“Like its predecessor, the Viking 2 mission consisted of a lander and an orbiter designed to take high-resolution images, and study the Martian surface and atmosphere. Both the Viking 1 and 2 landers benefited greatly from their orbiting counterparts, which snapped images that helped mission controllers navigate the landers to safe landing sites.”

This particular image was taken by the Viking 2 Orbiter and shows a massive dust storm on the red planet. This spectacular storm can be seen on a global scale. The Viking 2 mission would end 3 years later on April 11, 1980.

Credit: NASA/JPL

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