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~Oscar Wilde
Science City, Haleakala, Maui, Aprox. 10,000 ft elevation
What do you think? Are they watching Nibiru?
I apologize everyone for not really being able to visit all your streams and comment on everyone's wonderful photos. Unfortunately i need to post and run again, going to dinner, then mini golfing. My sister, mom and dad and peanut are leaving tomorrow. I will miss them so MUCH!!!! :(
I will be returning to my 365 project tomorrow.
c-ya, <3, happy monday!
Computer Science & Engineering student Dave Call and instructor Eric Karl working with newly donated equipment valued at around $500,000.
Just visited the Ciudad de las Artes y las Ciencias again (since it's just a few minutes walk away) and I still enjoy finding new angles!
From a kit from the 1970's that C's mom found in a drawer or closet, and then gave to E for Christmas this year. Still works!
A new image from the NASA/ESA/CSA James Webb Space Telescope reveals a remarkable cosmic sight: at least 17 concentric dust rings emanating from a pair of stars. Located just over 5000 light-years from Earth, the duo is collectively known as Wolf-Rayet 140. Each ring was created when the two stars came close together and their stellar winds (streams of gas they blow into space) met, compressing the gas and forming dust. The stars’ orbits bring them together about once every eight years; like the rings of a tree’s trunk, the dust loops mark the passage of time.
In addition to Webb’s overall sensitivity, its Mid-Infrared Instrument (MIRI) is uniquely qualified to study the dust rings. These rings are also called shells by astronomers because they are thicker and wider than they appear in the image. Webb’s science instruments detect infrared light, a range of wavelengths invisible to the human eye.
Contributed under both ESA and NASA leadership, Webb’s MIRI instrument detects the longest infrared wavelengths. This means that it can often see cooler objects – including the dust rings – than Webb’s other instruments can. MIRI’s spectrometer also revealed the composition of the dust, formed mostly from material ejected by a type of star known as a Wolf-Rayet star. A Wolf-Rayet star is born with at least 25 times more mass than our Sun and is nearing the end of its life, when it will likely explode as a supernova and then collapse into a black hole. Burning hotter than in its youth, a Wolf-Rayet star generates powerful winds that push huge amounts of gas into space. The Wolf-Rayet star in this particular pair may have shed more than half its original mass via this process.
Transforming gas into dust is somewhat like turning flour into bread. It requires specific conditions and ingredients. Hydrogen, the most common element found in stars, can’t form dust on its own. But because Wolf-Rayet stars shed so much mass, they also eject more complex elements typically found deep in a star’s interior, including carbon. The heavy elements in the wind cool as they travel into space and are then compressed where the winds from both stars meet, like when two hands knead dough.
Some other Wolf-Rayet systems form dust, but none is known to make rings like Wolf-Rayet 140 does. The unique ring pattern forms because the orbit of the Wolf-Rayet star in WR 140 is elongated, not circular. Only when the stars come close together – about the same distance between Earth and the Sun – and their winds collide is the gas under sufficient pressure to form dust. With circular orbits, Wolf-Rayet binaries can produce dust continuously.
The science team thinks WR 140’s winds also swept the surrounding area clear of residual material they might otherwise collide with, which may be why the rings remain so pristine rather than smeared or dispersed. There are likely even more rings that have become so faint and dispersed, not even Webb can see them in the data.
Wolf-Rayet stars may seem exotic compared to our Sun, but they may have played a role in star and planet formation. When a Wolf-Rayet star clears an area, the swept-up material can pile up at the outskirts and become dense enough for new stars to form. There is some evidence the Sun formed in such a scenario.
Using data from MIRI’s Medium Resolution Spectroscopy mode, the new study provides the best evidence yet that Wolf-Rayet stars produce carbon-rich dust molecules. What’s more, the preservation of the dust shells indicates that this dust can survive in the hostile environment between stars, going on to supply material for future stars and planets. The catch is that while astronomers estimate that there should be at least a few thousand Wolf-Rayet stars in our galaxy, only about 600 have been found to date.
These results have been published today in Nature Astronomy.
MIRI was contributed by ESA and NASA, with the instrument designed and built by a consortium of nationally funded European Institutes (the MIRI European Consortium) in partnership with JPL and the University of Arizona.
[Image Description: The background of this Webb image of star Wolf-Rayet 140 is black. A pair of bright stars dominates the centre of the image, with at least 17 pink-orange concentric dust rings emanating from them. Throughout the scene are a range of distant galaxies, the majority of which are very tiny and red, appearing as splotches.]
Credits: NASA/ESA/CSA/STScI/JPL-Caltech; CC BY 4.0
There is nothing quite as soothing to the soul as falling water.. and science has found that is because of the negative ions that are released from falling water, it affects our mood, calms us and makes us happy.
Amsterdam, Netherlands
NEMO Science Museum is a hands-on, science and technology museum housed in an impressive boat-shaped building
FlickrFriday theme: #Science
Fire was undoubtedly one of our earliest conquests of Nature. Probably science was born with the discovery of fire.
Paleolithic peoples used their technological innovations such as making tools and the use of fire to change their physical environment. By working together, they found a way to survive. In this case obviously Paleolithic peoples played a crucial role in human history.
City of Arts & Science in Valencia (Spain). Post-processing with Luminar: bit.ly/lumjc
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Ciudad de las Artes y las Ciencias de Valencia (España). Procesada con Luminar: bit.ly/lumjc
¿Quieres hacer fotos como esta en tus viajes? Échale un vistazo a mi ebook: www.jorgeciscar.com/ebook
An evening walk in False Creek in downtown Vancouver Canada. Amazing what the iPhone can do handheld now.
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Along the opposite direction from the Big Wheel is the Science Museum “Museum of Tomorrow”. It was closed when I arrived, although open later in the day. It was designed by Spanish neofuturistic architect Santiago Calatrava, who also designed the “City of Science” in Valencia. His architecture has been used as backdrops to quite a few science fiction films.
Just a couple of shots to show the magnitude of the crowd yesterday for Earth Day Science March. Trump wants to defund the Environmental Protection Agency and has already loosened US Department of Agriculture (USDA) restrictions. In addition, there's been a growing laxation of what it means to have food qualified as organic. So, this effects the air we breathe, the water we drink and the food we eat. Trump doesn't believe in alternative energy and would rather bring back increased oil drilling, coal and other pollutants. He doesn't believe climate change exists and this will not only effect those living in America but those living throughout the world. He wants to ignore sound scientific data in favor of his billionaire buddies at Exxon, for example.
The idea that climate change is a partisan issue at this point is alarming. This is the Earth we all live in. It's not just the children of liberals that will be affected by these policies. Trump's own children will have to struggle to survive because of the damage he is doing. And yet, he continues to show wrath towards this planet and everyone on it. Impeach Trump!
**All photos are copyrighted. Please don't use without permission**
M78 - A reflection nebula in Orion
System details:
Location: Murrindindi shire, Victoria, Australia
Telescope: AG Optical Systems 0.3 meter iDK,
Focal length 2121 mm
Camera: mono FLI ML16200 with a Loadstar X2 on an Astrodon MOAG off-axis guider.
Adaptive Optics: SXV-AO-LF
Observatory: Scopedome 3M
Acquisition software: Voyager
Plate size: 44' x 35'
Lum filter 126 x 2 minutes 2x2 binned
RGB filters 40 x 2 minutes each 2x2 binned
I’m having a hard time believing this one is real. Not even five minutes after heading out to photograph my first new snowflakes of the season, I discover this nearly perfect beauty. This is the reason why I head out to photograph new snowflakes even though I have many hundreds from previous years that I haven’t had the time to edit. View large!
Slow, stable growth gives is broad-branched snowflakes, and this one shows some signs of spinning in a fairly stable way. This is the only way I can explain the side-branches always being larger on their right side when looking up at them from the center. If this crystal was rotating in a clockwise manner, then more water vapour would be available to build up the branches like this, but it wouldn’t have an appreciable impact on the order branches where the building blocks were more abundant. Just a theory!
The center ties it all together, and it’s very hard to explain. The large hexagon is sitting above the lower plate (you can see underlying features of the snowflake below it), and the darker dot in the center is usually a symbol of a start as a “capped column” type of snowflake. It’s very rare for this to result in a very large hexagon in the center, but more like the smaller one in the middle, gem-like in appearance… So where did these two hexagons come from? I don’t know.
I suppose the mystery would be easier to solve if I had the opportunity to flip it over and photograph the opposite side, but as soon as the photos were taken it caught a whisper of wind and disappeared.
I’m going to say that this snowflakes makes it into my all-time top 10 list. I contemplated saving it for later in the series, but if this is how the season starts I’m sure I’ll have plenty more gems to share as winter takes hold. :)
If you’d like to know more about the science of snowflakes with an exhaustive and comprehensive tutorial on how to photograph and edit these little gems, check out my book Sky Crystals:
Hardcover: www.skycrystals.ca/book/
eBook: www.skycrystals.ca/ebook/
Other things you might be interested in:
2018 Ice Crystals Coin from the Royal Canadian Mint featuring my snowflakes: www.mint.ca/store/coins/coin-prod3040427
“The Snowflake” print, taking 2500 hours to create: skycrystals.ca/product/poster-proof/
Photo Geek Weekly, my new podcast: www.photogeekweekly.com/