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Saturn’s hexagon

This colorful view from NASA’s Cassini mission is the highest-resolution view of the unique six-sided jet stream at Saturn’s north pole known as “the hexagon.” This movie, made from images obtained by Cassini’s imaging cameras, is the first to show the hexagon in color filters, and the first movie to show a complete view from the north pole down to about 70 degrees north latitude.

Via NASA: In Full View: Saturn’s Streaming Hexagon

Hi all! Grace here.

I am not yet studying Anatomy and probably won’t until next year, but I decided to look up sources relating to Anatomy and gather them here for future reference! I will be adding more to it as I find more. If you are currently studying Anatomy or already have, please let me know if there were sources you are using/did use that were/are helpful so I can add them! :)

Nurse Journal

Human Body Images

Gross Anatomy

E-Skeleton

Human Anatomy

Introduction to the Human Body

Digestive System: The Inside Story

Body Parts Game

The Immune System

Human Anatomy Learning Modules

The Respiratory System

Anatomy of the Eye

Digestive Disorders and Anatomy

Anatomy Flashcards

Human Anatomy and Physiology

Blood Type Lesson Plan

Introduction to Human Genetics

Anatomy of the Human Brain

Heart Anatomy

Anatomy of the Lungs

NYU Virtual Microscope

Muscle Quizzes

Parts of the Brain

Dermatology Glossary

Interactive Body Games

Anatomical Images

The Bone Box

Muscles of the Body

Anatomy and Physiology Course 

Human Body Maps

The Digestive System

Interactive Case Studies

Online Biology Book

Radiographic Anatomy 

Body Guide: Skin

Immunity Guide

Anatomy Self-Test

I hope this is helpful! x

The Carina Nebula.

js

Z is for Zika virus!

Science Alphabet Game!

A is for Adenine!

Reblog with the next letter.

Unit circle.

Want to See the Oldest Surviving Video of a Total Solar Eclipse?

It was done in – wait for it – 1900! The first total solar eclipse to be filmed has recently been restored. The film was done by Nevil Maskelyne, an illusionist turned astronomic videographer for the British Royal Astronomical Society.

This 1900 film is actually Maskelyne’s second attempt at filming a total solar eclipse. His first attempt was in 1898, when he traveled all the way to India to be at the right place to view a predicted total eclipse. Maskelyne got there in time, but sadly, his film was stolen, and the crime remains unsolved and the film unrecovered.

ATLASGAL Survey of Milky Way Completed

ESO - European Southern Observatory logo. 24 February 2016

The southern plane of the Milky Way from the ATLASGAL survey

A spectacular new image of the Milky Way has been released to mark the completion of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX telescope in Chile has mapped the full area of the Galactic Plane visible from the southern hemisphere for the first time at submillimetre wavelengths — between infrared light and radio waves — and in finer detail than recent space-based surveys. The pioneering 12-metre APEX telescope allows astronomers to study the cold Universe: gas and dust only a few tens of degrees above absolute zero. APEX, the Atacama Pathfinder EXperiment telescope, is located at 5100 metres above sea level on the Chajnantor Plateau in Chile’s Atacama region. The ATLASGAL survey took advantage of the unique characteristics of the telescope to provide a detailed view of the distribution of cold dense gas along the plane of the Milky Way galaxy [1]. The new image includes most of the regions of star formation in the southern Milky Way [2].

The southern plane of the Milky Way from the ATLASGAL survey

The new ATLASGAL maps cover an area of sky 140 degrees long and 3 degrees wide, more than four times larger than the first ATLASGAL release [3]. The new maps are also of higher quality, as some areas were re-observed to obtain a more uniform data quality over the whole survey area. The ATLASGAL survey is the single most successful APEX large programme with nearly 70 associated science papers already published, and its legacy will expand much further with all the reduced data products now available to the full astronomical community [4].

The southern plane of the Milky Way from the ATLASGAL survey (annotated)

At the heart of APEX are its sensitive instruments. One of these, LABOCA (the LArge BOlometer Camera) was used for the ATLASGAL survey. LABOCA  measures incoming radiation by registering the tiny rise in temperature it causes on its detectors and can detect emission from the cold dark dust bands obscuring the stellar light. The new release of ATLASGAL complements observations from ESA’s Planck satellite [5]. The combination of the Planck and APEX data allowed astronomers to detect emission spread over a larger area of sky and to estimate from it the fraction of dense gas in the inner Galaxy. The ATLASGAL data were also used to create a complete census of cold and massive clouds where new generations of stars are forming.

Comparison of the central part of the Milky Way at different wavelengths

“ATLASGAL provides exciting insights into where the next generation of high-mass stars and clusters form. By combining these with observations from Planck, we can now obtain a link to the large-scale structures of giant molecular clouds,” remarks Timea Csengeri from the Max Planck Institute for Radio Astronomy (MPIfR), Bonn, Germany, who led the work of combining the APEX and Planck data.

Comparison of the central part of the Milky Way at different wavelengths (annotated)

The APEX telescope recently celebrated ten years of successful research on the cold Universe. It plays an important role not only as pathfinder, but also as a complementary facility to ALMA, the Atacama Large Millimeter/submillimeter Array, which is also located  on the Chajnantor Plateau. APEX is based on a prototype antenna constructed for the ALMA project, and it has found many targets that ALMA can study in great detail.

Comparison of the central part of the Milky Way at different wavelengths

Leonardo Testi from ESO, who is a member of the ATLASGAL team and the European Project Scientist for the ALMA project, concludes: “ATLASGAL has allowed us to have a new and transformational look at the dense interstellar medium of our own galaxy, the Milky Way. The new release of the full survey opens up the possibility to mine this marvellous dataset for new discoveries. Many teams of scientists are already using the ATLASGAL data to plan for detailed ALMA follow-up.”

Close look at the ATLASGAL image of the plane of the Milky Way

Notes: [1] The map was constructed from individual APEX observations of radiation with a wavelength of 870 µm (0.87 millimetres). [2] The northern part of the Milky Way had already been mapped by the James Clerk Maxwell Telescope (JCMT) and other telescopes, but the southern sky is particularly important as it includes the Galactic Centre, and because it is accessible for detailed follow-up observations with ALMA. [3] The first data release covered an area of approximately 95 square degrees, a very long and narrow strip along the Galactic Plane two degrees wide and over 40 degrees long. The final maps now cover 420 square degrees, more than four times larger. [4] The data products are available through the ESO archive: http://archive.eso.org/wdb/wdb/adp/phase3_main/form?phase3_collection=ATLASGAL&release_tag=1 [5] The Planck data cover the full sky, but with poor spatial resolution. ATLASGAL covers only the Galactic plane, but with high angular resolution. Combining both provides excellent spatial dynamic range. More information: ATLASGAL is a collaboration between the Max Planck Institute for Radio Astronomy (MPIfR), the Max Planck Institute for Astronomy (MPIA), ESO, and the University of Chile. APEX is a collaboration between the Max Planck Institute for Radio Astronomy (MPIfR), the Onsala Space Observatory (OSO) and ESO. Operation of APEX at Chajnantor is carried out by ESO. ALMA is a partnership of the ESO, the U.S. National Science Foundation (NSF) and the National Institutes of Natural Sciences (NINS) of Japan in cooperation with the Republic of Chile. ALMA is funded by ESO on behalf of its Member States, by NSF in cooperation with the National Research Council of Canada (NRC) and the National Science Council of Taiwan (NSC) and by NINS in cooperation with the Academia Sinica (AS) in Taiwan and the Korea Astronomy and Space Science Institute (KASI). ESO is the foremost intergovernmental astronomy organisation in Europe and the world’s most productive ground-based astronomical observatory by far. It is supported by 16 countries: Austria, Belgium, Brazil, the Czech Republic, Denmark, France, Finland, Germany, Italy, the Netherlands, Poland, Portugal, Spain, Sweden, Switzerland and the United Kingdom, along with the host state of Chile. ESO carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities enabling astronomers to make important scientific discoveries. ESO also plays a leading role in promoting and organising cooperation in astronomical research. ESO operates three unique world-class observing sites in Chile: La Silla, Paranal and Chajnantor. At Paranal, ESO operates the Very Large Telescope, the world’s most advanced visible-light astronomical observatory and two survey telescopes. VISTA works in the infrared and is the world’s largest survey telescope and the VLT Survey Telescope is the largest telescope designed to exclusively survey the skies in visible light. ESO is a major partner in ALMA, the largest astronomical project in existence. And on Cerro Armazones, close to Paranal, ESO is building the 39-metre European Extremely Large Telescope, the E-ELT, which will become “the world’s biggest eye on the sky”. Links: The ATLASGAL survey: http://www3.mpifr-bonn.mpg.de/div/atlasgal/index.html LABOCA (the LArge BOlometer Camera) : https://www.eso.org/public/teles-instr/apex/laboca/ Max-Planck-Institute for Radio Astronomy (MPIfR): http://www.mpifr-bonn.mpg.de/2169/en Onsala Space Observatory (OSO): http://www.chalmers.se/en/centres/oso/Pages/default.aspx ATLASGAL information at MPIfR: http://www3.mpifr-bonn.mpg.de/div/atlasgal/index.html The Csengeri et al. 2016 paper on the combination with Planck data: http://esoads.eso.org/abs/2016A%26A…585A.104C ATLASGAL papers linked in the ESO Telescope Bibliography: http://telbib.eso.org/?q=atlasgal&boolany=or&boolaut=or&boolti=or&yearto=2016&boolins=or&booltel=or&search=Search ESA’s Planck satellite: http://www.esa.int/Our_Activities/Space_Science/Planck_overview Related article: First ATLASGAL release: https://www.eso.org/public/news/eso0924/ Images, Text, Credits: ESO/APEX/ATLASGAL consortium/NASA/GLIMPSE consortium/ESA/Planck/D. Minniti/S. GuisardAcknowledgement: Ignacio Toledo, Martin Kornmesser/Videos: ESO/APEX/ATLASGAL consortium/NASA/GLIMPSE consortium/ESA/Planck/VVV Survey/D. Minniti/S. Guisard/Acknowledgement: Ignacio Toledo, Martin Kornmesser. Music: Johan B. Monell (www.johanmonell.com). Best regards, Orbiter.ch Full article

Would It Be A Bad Thing to Wipe Out A Species … If It’s A Mosquito?

Mosquitoes have a nasty reputation.

The species Aedes aegypti, for example, is currently responsible for spreading the Zika virus through the Americas and also infects humans with dengue fever, chikungunya and yellow fever.

This raises the question: Should there be an effort to get rid of Aedes aegypti for good?

“There’s been lots of debate in the last 10 years whether we should eradicate mosquitoes, or at least the 100 species or so that serve as disease vectors for humans,” says David Magnus, director of Stanford University’s Center for Biomedical Ethics. “If you look at the science, the majority [of scientists] think we could probably eliminate mosquitoes without too much harm on the environment.”

Read the full story here.

Illustration: Matthew Twombly

The upper atmosphere of the Sun is dominated by plasma filled magnetic loops (coronal loops) whose temperature and pressure vary over a wide range. The appearance of coronal loops follows the emergence of magnetic flux, which is generated by dynamo processes inside the Sun. Emerging flux regions (EFRs) appear when magnetic flux bundles emerge from the solar interior through the photosphere and into the upper atmosphere (chromosphere and the corona). The characteristic feature of EFR is the Ω-shaped loops (created by the magnetic buoyancy/Parker instability), they appear as developing bipolar sunspots in magnetograms, and as arch filament systems in Hα. EFRs interact with pre-existing magnetic fields in the corona and produce small flares (plasma heating) and collimated plasma jets. The GIFs above show multiple energetic jets in three different wavelengths. The light has been colorized in red, green and blue, corresponding to three coronal temperature regimes ranging from ~0.8Mk to 2MK. 

Image Credit: SDO/U. Aberystwyth

It’s a baby bat ray brunch! Using plate-like teeth to grind and chew their sustainable seafood, these youngsters will grow quickly into their role as majestic sea flap flaps.