Keni
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Show & Tell
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Cosmic Funnies
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"I'm Dorothy Gale from Kansas"
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❣ Chile in a Photography ❣
almost home
Three Goblin Art
we're not kids anymore.
PUT YOUR BEARD IN MY MOUTH
todays bird
dirt enthusiast
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oozey mess
he wasn't even looking at me and he found me
shark vs the universe
seen from Uzbekistan
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@femaleengineer-blog
13.05.17 // Updated my physics window for the first time in ages! Had some thoughts over the past few weeks surrounding a free scalar field universe model so I drew them up as well as some old game theory because I watched a Beautiful Mind and felt nostalgic. I hope you are all having wonderful days / evening / whatever plane of existentialism you currently observe 😉
Escape velocities for every planet in the solar system
Jupiter: YEET
Nasa spots mysterious heart-shaped craters on the surface of Mars. Mars wishes you love ❤
Meet the real women behind Hidden Figures.
In the early days of the Space Race, Dorothy Vaughan headed the National Advisory Committee for Aeronautics’ (NACA) West Area Computing unit. It was an important but segregated unit of mostly female mathematicians doing aerospace calculations by hand. When NACA became NASA in 1958, the Analysis and Computation Division desegregated and Vaughan became a sought-after expert on FORTRAN – a programming language used on IBM mainframes.
Vaughan is one of the women whose work inspired the film Hidden Figures — a true story of three African American mathematicians who helped NASA launch the first Americans into space.
Feeling inspired? See how coding might figure into your life. Uncover more about Dorothy Vaughan →
Professor Michael Tut’s diagram of how the Saint Laurent “heel-less” shoe works.
While driving down Interstate 5 through Santa Ana, California, you may have spotted this rocket. Even for space fans, identifying this vehicle may be difficult. It is a rare Delta Cryogenic Second Stage (DCSS) for the short lived Delta III rocket. This DCSS has a home at Discovery Cube Orange County, where she acts as an effective billboard for this educational museum. This equipment is appropriately placed near Huntington Beach where this particular payload fairing was manufactured.
On August 27, 1998, the Delta 259 mission lifted off from Launch Complex 17B at Cape Canaveral Air Force Station in Florida, marking the first flight of a Delta III, carrying the Galaxy 10 communication satellite. During the burn of its first stage, a design flaw in the rocket’s guidance system caused it to violently diverge from its planned trajectory and begin to break up. During the breakup process, the flight termination system was activated by the range safety officer, causing what was left of the rocket to explode. The Galaxy 10 satellite could be seen that night as a flaming ball streaking down until it spectacularly exploded as it hit the Atlantic Ocean.
The second flight of a Delta III would take place on May 5, 1999, as the Delta 269 mission flew from the same pad. Thanks to a manufacturing flaw in the Pratt & Whitney RL10B-2 engine, the second stage burn was cut short, causing the stage to tumble into a useless orbit. The Orion 3 communication satellite was written off and a second payload was lost.
A final flight of the Delta III would take place on August 23, 2000, with the Delta 280 mission, which carried a dummy payload called DM-F3. This time, the flight was a success, but it was too late for the Delta III. The commercial satellite industry took a steep dive in the late 1990s. The more powerful Delta IV was just a few years away from its first flight, and Boeing was pursuing a more conservative Delta II Heavy rocket. These factors, combined with the failures, caused the Delta III to be quietly shelved. Some spare parts from the program were flown on various Delta II and Delta IV flights, and in the late 2000s, Boeing donated this DCSS to Discovery Cube Orange County where it stands today, greeting passersby on Interstate 5.
I’m glad to see this is still at the museum. The fuel tank of the DCSS can be seen as the orange portion in the photo below. The Delta III rocket’s history can be explored more here.
Largest Batch of Earth-size, Habitable Zone Planets
Our Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in an area called the habitable zone, where liquid water is most likely to exist on a rocky planet.
This exoplanet system is called TRAPPIST-1, named for The Transiting Planets and Planetesimals Small Telescope (TRAPPIST) in Chile. In May 2016, researchers using TRAPPIST announced they had discovered three planets in the system.
Assisted by several ground-based telescopes, Spitzer confirmed the existence of two of these planets and discovered five additional ones, increasing the number of known planets in the system to seven.
This is the FIRST time three terrestrial planets have been found in the habitable zone of a star, and this is the FIRST time we have been able to measure both the masses and the radius for habitable zone Earth-sized planets.
All of these seven planets could have liquid water, key to life as we know it, under the right atmospheric conditions, but the chances are highest with the three in the habitable zone.
At about 40 light-years (235 trillion miles) from Earth, the system of planets is relatively close to us, in the constellation Aquarius. Because they are located outside of our solar system, these planets are scientifically known as exoplanets. To clarify, exoplanets are planets outside our solar system that orbit a sun-like star.
In this animation, you can see the planets orbiting the star, with the green area representing the famous habitable zone, defined as the range of distance to the star for which an Earth-like planet is the most likely to harbor abundant liquid water on its surface. Planets e, f and g fall in the habitable zone of the star.
Using Spitzer data, the team precisely measured the sizes of the seven planets and developed first estimates of the masses of six of them. The mass of the seventh and farthest exoplanet has not yet been estimated.
For comparison…if our sun was the size of a basketball, the TRAPPIST-1 star would be the size of a golf ball.
Based on their densities, all of the TRAPPIST-1 planets are likely to be rocky. Further observations will not only help determine whether they are rich in water, but also possibly reveal whether any could have liquid water on their surfaces.
The sun at the center of this system is classified as an ultra-cool dwarf and is so cool that liquid water could survive on planets orbiting very close to it, closer than is possible on planets in our solar system. All seven of the TRAPPIST-1 planetary orbits are closer to their host star than Mercury is to our sun.
The planets also are very close to each other. How close? Well, if a person was standing on one of the planet’s surface, they could gaze up and potentially see geological features or clouds of neighboring worlds, which would sometimes appear larger than the moon in Earth’s sky.
The planets may also be tidally-locked to their star, which means the same side of the planet is always facing the star, therefore each side is either perpetual day or night. This could mean they have weather patterns totally unlike those on Earth, such as strong wind blowing from the day side to the night side, and extreme temperature changes.
Because most TRAPPIST-1 planets are likely to be rocky, and they are very close to one another, scientists view the Galilean moons of Jupiter – lo, Europa, Callisto, Ganymede – as good comparisons in our solar system. All of these moons are also tidally locked to Jupiter. The TRAPPIST-1 star is only slightly wider than Jupiter, yet much warmer.
How Did the Spitzer Space Telescope Detect this System?
Spitzer, an infrared telescope that trails Earth as it orbits the sun, was well-suited for studying TRAPPIST-1 because the star glows brightest in infrared light, whose wavelengths are longer than the eye can see. Spitzer is uniquely positioned in its orbit to observe enough crossing (aka transits) of the planets in front of the host star to reveal the complex architecture of the system.
Every time a planet passes by, or transits, a star, it blocks out some light. Spitzer measured the dips in light and based on how big the dip, you can determine the size of the planet. The timing of the transits tells you how long it takes for the planet to orbit the star.
The TRAPPIST-1 system provides one of the best opportunities in the next decade to study the atmospheres around Earth-size planets. Spitzer, Hubble and Kepler will help astronomers plan for follow-up studies using our upcoming James Webb Space Telescope, launching in 2018. With much greater sensitivity, Webb will be able to detect the chemical fingerprints of water, methane, oxygen, ozone and other components of a planet’s atmosphere.
At 40 light-years away, humans won’t be visiting this system in person anytime soon…that said…this poster can help us imagine what it would be like:
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
The fact that you would be able to tell the weather patterns and surface features from your neighboring planets is mind-blowing.
Lightning trapped in a block of glass.
I WANT A LIGHTNING BLOCK
ur own little pet lightning block yes
Electricity Finding the Path of Least Resistance on a Piece of Wood.
(YouTube)
Project for a retractable roof over a street in 1965, Vienna
Inside a Daya Bay Antineutrino Detector : Why is there more matter than antimatter in the Universe? To better understand this facet of basic physics, energy departments in China and the USA led in the creation of the Daya Bay Reactor Neutrino Experiment. Located under thick rock about 50 kilometers northeast of Hong Kong, China, eight Daya Bay detectors monitor antineutrinos emitted by six nearby nuclear reactors. Featured here, a camera looks along one of the Daya Bay detectors, imaging photon sensors that pick up faint light emitted by antineutrinos interacting with fluids in the detector. Early results indicate an unexpectedly high rate of one type of antineutrino changing into another, a rate which, if confirmed, could imply the existence of a previously undetected type of neutrino as well as impact humanitys comprehension of fundamental particle reactions that occurred within the first few seconds of the Big Bang. via NASA
js
Close up of my phd physics wall, today was a lazy, thesis writing kind of day.
Listening to sigur 1 - sigúr rós
We start at an after-school program for middle-schoolers and end at tech companies that try to be front-runners on diversity. Where do girls and women drop out from the tech talent pipeline?
Red Spider Nebula
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Octavia Spencer tweet: ‘Hidden Figures’ Is The First Female-Fronted Movie to Remain No. 1 Since 2011
Huffpo link: http://bit.ly/2iywGTk
This is ALL of the water and air contained within Earth’s atmosphere show to scale. The graphic shows 1.4087 billion cubic kilometres of water and 5,140 trillion tonnes of air Image: Félix Pharand-Deschênes
