Karina + Black Mamba Stages 

Me after watching 3 episodes of Blood Of Zeus. Sees the villain using a bident. And a 3 headed dog beside him. Please don’t be Hades, Please don’t be Hades- Me after seeing the entire show: *spoilers ahead*

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Upper Kings Creek Meadow by Dan Gildor

Via Flickr

Passing the parking lot for the Lassen Peak Trail–and not quite having the five hours (or knees) that it would take to hike to the summit as I’ve done twice before, we started our descent with wonderful views of the park.

Near the Kings Creek campground, Kings Creek meanders through Upper Kings Creek Meadow, offering one last photographic opportunity before it was time to head to Old Station for the night.

Mythology Posters Series: Enyo

A greek goddess of war and destruction, she was the daughter of Zeus and Hera, a sister, female counterpart and companion to Ares. Enyo was responsible to orchestrating the destruction of cities, and along with Eris - to whom she’s often associated -, Phobos and Deimos inflicted terror and bloodshed during the fall of Troy. The Romans identified her with Bellona.

The Lives, Times, and Deaths of Stars

Who among us doesn’t covertly read tabloid headlines when we pass them by? But if you’re really looking for a dramatic story, you might want to redirect your attention from Hollywood’s stars to the real thing. From birth to death, these burning spheres of gas experience some of the most extreme conditions our cosmos has to offer.

All stars are born in clouds of dust and gas like the Pillars of Creation in the Eagle Nebula pictured below. In these stellar nurseries, clumps of gas form, pulling in more and more mass as time passes. As they grow, these clumps start to spin and heat up. Once they get heavy and hot enough (like, 27 million degrees Fahrenheit or 15 million degrees Celsius), nuclear fusion starts in their cores. This process occurs when protons, the nuclei of hydrogen atoms, squish together to form helium nuclei. This releases a lot of energy, which heats the star and pushes against the force of its gravity. A star is born.

Credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA)

From then on, stars’ life cycles depend on how much mass they have. Scientists typically divide them into two broad categories: low-mass and high-mass stars. (Technically, there’s an intermediate-mass category, but we’ll stick with these two to keep it straightforward!)

Low-mass stars

A low-mass star has a mass eight times the Sun’s or less and can burn steadily for billions of years. As it reaches the end of its life, its core runs out of hydrogen to convert into helium. Because the energy produced by fusion is the only force fighting gravity’s tendency to pull matter together, the core starts to collapse. But squeezing the core also increases its temperature and pressure, so much so that its helium starts to fuse into carbon, which also releases energy. The core rebounds a little, but the star’s atmosphere expands a lot, eventually turning into a red giant star and destroying any nearby planets. (Don’t worry, though, this is several billion years away for our Sun!)

Red giants become unstable and begin pulsating, periodically inflating and ejecting some of their atmospheres. Eventually, all of the star’s outer layers blow away, creating an expanding cloud of dust and gas misleadingly called a planetary nebula. (There are no planets involved.)

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

All that’s left of the star is its core, now called a white dwarf, a roughly Earth-sized stellar cinder that gradually cools over billions of years. If you could scoop up a teaspoon of its material, it would weigh more than a pickup truck. (Scientists recently found a potential planet closely orbiting a white dwarf. It somehow managed to survive the star’s chaotic, destructive history!)

High-mass stars

A high-mass star has a mass eight times the Sun’s or more and may only live for millions of years. (Rigel, a blue supergiant in the constellation Orion, pictured below, is 18 times the Sun’s mass.)

Credit: Rogelio Bernal Andreo

A high-mass star starts out doing the same things as a low-mass star, but it doesn’t stop at fusing helium into carbon. When the core runs out of helium, it shrinks, heats up, and starts converting its carbon into neon, which releases energy. Later, the core fuses the neon it produced into oxygen. Then, as the neon runs out, the core converts oxygen into silicon. Finally, this silicon fuses into iron. These processes produce energy that keeps the core from collapsing, but each new fuel buys it less and less time. By the point silicon fuses into iron, the star runs out of fuel in a matter of days. The next step would be fusing iron into some heavier element, but doing requires energy instead of releasing it.  

The star’s iron core collapses until forces between the nuclei push the brakes, and then it rebounds back to its original size. This change creates a shock wave that travels through the star’s outer layers. The result is a huge explosion called a supernova.

What’s left behind depends on the star’s initial mass. Remember, a high-mass star is anything with a mass more than eight times the Sun’s — which is a huge range! A star on the lower end of this spectrum leaves behind a city-size, superdense neutron star. (Some of these weird objects can spin faster than blender blades and have powerful magnetic fields. A teaspoon of their material would weigh as much as a mountain.)

At even higher masses, the star’s core turns into a black hole, one of the most bizarre cosmic objects out there. Black holes have such strong gravity that light can’t escape them. If you tried to get a teaspoon of material to weigh, you wouldn’t get it back once it crossed the event horizon — unless it could travel faster than the speed of light, and we don’t know of anything that can! (We’re a long way from visiting a black hole, but if you ever find yourself near one, there are some important safety considerations you should keep in mind.)

The explosion also leaves behind a cloud of debris called a supernova remnant. These and planetary nebulae from low-mass stars are the sources of many of the elements we find on Earth. Their dust and gas will one day become a part of other stars, starting the whole process over again.

That’s a very brief summary of the lives, times, and deaths of stars. (Remember, there’s that whole intermediate-mass category we glossed over!) To keep up with the most recent stellar news, follow NASA Universe on Twitter and Facebook.

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

common misconceptions of greek or roman mythology

» Nike & Dike are two different gods. Nike is the goddess of victory & Dike is the goddess of justice

» Hades is the god of the underworld & Thanatos is the god of death

» Persephone isn’t just the queen of the underworld, she’s the goddess of spring

» There’s two goddesses named Thalia, one of the muses, and one of graces

» In Greek, a name like Hekate or Kassandra would be spelled with a K, but in other languages it can be spelled with a C

» In Roman Mythology, Apollo is still Apollo (there many be other wording to how it’s spelt, but it’s still Apollo)

» Hermes could fly without his sandals as they were simply symbols for him

» The definition of the twelve Olympians changes because multiple texts decipher other gods/goddesses as being apart of the twelve Olympians

» The titans were not ultimately bad gods, some would say they were nicer to humanity and never tried to destroy humanity (this idea was popularized by Percy Jackson), and the Olympians attacked first

» There is no “Pandora’s” box, Pandora, who is actually a woman created, actually opened the box after being gifted it on her wedding day

» Not many people worshiped Ares because he was majority of the time on the losing side & he was considered too violent and difficult to have on your side 

» At first Rome’s gods had no appearance until they absorbed more Greek Mythology

» The Trojan War is still being debated as actually happening, there has been debris found that could indicate that there was a siege to the city

» Male demigods tended to have higher-than-average ambition and physical powers, while female demigods (like Helen of Troy) only were gifted with exceptional beauty

»  Death gods were pretty laid back compared to other gods & the only person/god Hades ever killed was Asclepius, but only because Asclepius was bringing the dead back to life & disrupting the cycle of life

Do you believe in magic? ✨ ⁣ While appearing as a delicate and light veil draped across the sky, this @NASAHubble image reminds us of the power of imagination. What does this look like to you?⁣ ⁣ In reality, it’s a small section of a Cygnus supernova blast wave, located around 2,400 light-years away. The original supernova explosion blasted apart a dying star about 20 times more massive than our Sun between 10,000 and 20,000 years ago. Since then, the remnant has expanded 60 light-years from its center. ⁣ ⁣ Credit: @ESA/Hubble & NASA, W. Blair; acknowledgment: Leo Shatz⁣ ⁣

I just miss my tea time😥

Sour Almond Loaf Cake | Plum

Ragnarok!

So, tell me how to be in this world Tell me how to breathe in and feel no hurt Tell me how ’cause I believe in something I believe in us