Crescent moon sets behind a cumulus cloud, photographed from the 10,000 ft high peak of Haleakala volcano on Maui, Hawaii. Swipe left to see a closer view of the scene. 🌕🌙 🔭
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Image credits: @babaktafreshi
1 hour ago
Hubble’s Sombrero Galaxy 🤩
This luminous and massive galaxy has a total mass of about 800 billion suns! 😮
Follow @spaceclub for more 👈
Photo: @NASAHubble (@NASA / @EuropeanSpaceAgency)
Fairy Eagle Nebula 🌌 🔭
The dust sculptures of the Eagle Nebula are evaporating. As powerful starlight whittles away these cool cosmic mountains, the statuesque pillars that remain might be imagined as mythical beasts. Featured here is one of several striking dust pillars of the Eagle Nebula that might be described as a gigantic alien fairy. This fairy, however, is ten light years tall and spews radiation much hotter than common fire. The greater Eagle Nebula, M16, is actually a giant evaporating shell of gas and dust inside of which is a growing cavity filled with a spectacular stellar nursery currently forming an open cluster of stars. This great pillar, which is about 7,000 light years away, will likely evaporate away in about 100,000 years. 🌌 🔭
The soaring tower is 9.5 light-years (or about 57 trillion miles) high, about twice the distance from our Sun to the next nearest star. 🌌 🔭
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Image credit: NASA Hubble
20 hours ago
Apollo landing site marked
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Image credit: @timm1138
Publicamos em nosso site uma introdução em português do artigo "Radiação e Radiofobia". Nele, os autores usam uma analogia divertida sobre alguns de seus artigos, referindo aos mesmos como destruidores de mitos ou “mythbusters” da urologia. Eles apresentam alguns temas com as evidências e no final dão o veredito final em relação ao mesmo. Para acessar o artigo em inglês, basta clicar no link disponível no PDF.
We published on our website an introduction in Portuguese to the article "Radiation and Radiophobia". The authors use a funny analogy about some of their articles, referring to them as myth-destroying or urological mythbusters. They present some themes with the evidence and in the end give the final verdict on it. To access the article in English, just click on the available link in the PDF.
Publicamos en nuestro sitio una introducción en portugués al artículo "Radiación y radiofobia". En él, los autores utilizan una divertida analogía sobre algunos de sus artículos, refiriéndose a ellos como destructores de mitos o destructores de mitos urológicos. Presentan algunos temas con la evidencia y al final dan el veredicto final. Para acceder al artículo en inglés, visite el enlace disponible en el PDF.
2 minutes ago
Dory directing the river of times nutrients entrance. Disney spells Tis hey who can see the cryptography hidden in fantasy Throughout the looking glass mounted on a Wal [T]V. A Chrono][sphere = chromosome 360° turning back the sands of Time = Ti × me, a mass my light into matter that will exist inside a construct that only matters for matter. I am He man Prince of Eternia A spark of light that is real light compressed into a biological 666 carbon vessel. If you came to the correct calculations using energy, frequency and vibrations Tesla's cryptography in 9 6 3 lead straight to me. A trinity of quotes for you and me that uncovers the universe's totality: Nicola Tesla: 1# "If you want to find the secrets of the Universe, think in terms of energy, frequency and vibrations". 2# "If you only knew the magnificence of the 3, 6 and 9, then you would have a key to the universe." 3# "Everything is Light". The sounds that cause my meltdowns in overload. #physics#sun#light#moon#star#autism#god#allah#sunlight#sunshine#life#tesla#aspergers#sunset#mit#autismawareness#autismspeaks#aspie#rainbow#universe#friends#science#technology#engineering#mathmatics#army#airforce#marines#navy#time
Tim said, "Kevin, I've got a science question for you. When I look at that cup with these sunglasses there's a kind of rainbow color. What is that due to?" I took a quick look, and replied, "Classic quantum electrodynamics, not refraction." I recommended an excellent little book on the subject. Only $6 on Amazon. Thank you #richardfeynman it's much appreciated. kev #science#physics
8 minutes ago
Heavy Water: D2O is H2O with every H (regular hydrogen, main isotope nucleus=proton) with a D (rare isotope hydrogen nucleus=proton+neutron). So D, deuterium, has close to twice the mass of hydrogen. Each vial has exactly 10 grams of each liquid- note there is less D2O because it has more neutrons which makes it 11% more dense than regular water. ➡️ Follow the link in my profile for info on where to get many of the amazing items featured here on @physicsfun#heavywater#deuterium#isotope#nucleus#physics#physicstoy#chemistry#nuclear#science#scienceisawesome
How's this for a complete physics visual representation? The Saturn V rocket launch for Apollo 11 burned 4,887.5 liters of fuel per second. Converting that to kg results in 5,865 kg per second. This video uses elephants to more clearly represent just how much mass this is. ➖➖➖➖➖➖➖➖➖➖➖➖➖
With an average elephant weighing in at 4,309kg - this equals approximately 1.36 elephants per second. Talk about "movin weight!" ✌
🎶"Moving Weight" - Dave East🎶
🚀 🚀#SaturnV #RocketLaunch#MovingWeight 🚀 🚀
6 Earthers aboard the @ISS passing in front of the Moon at 7.66 km per second!
To orbit a planet essentially means to be above the planet and to be moving forward at about the same rate you are falling towards the Earth. This creates the phenomenon of constantly falling towards our planet, but never hitting it.
For the @iss , at an altitude of 400 km, that forward velocity is about 17,500 miles per hour.
Have you ever spotted the @iss in your night sky?
Fibrils Flower on the Sun
When does the Sun look like a flower? In a specific color of red light emitted by hydrogen, as featured here, some regions of the solar chromosphere may resemble a rose. The color-inverted image was taken in 2014 October and shows active solar region 2177. The petals dominating the frame are actually magnetically confined tubes of hot plasma called fibrils, some of which extend longer than the diameter of the Earth. In the central region many of these fibrils are seen end-on, while the surrounding regions are typically populated with curved fibrils. When seen over the Sun's edge, these huge plasma tubes are called spicules, and when they occur in passive regions they are termed mottles. Sunspot region 2177 survived for several more days before the complex and tumultuous magnetic field poking through the Sun's surface evolved yet again. Follow APOD on: Facebook, Google Plus, or Twitter
Image Credits:Big Bear Solar Obs.NJITAlan FriedmanAverted Imagination