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2016 September 28 NGC 3576: The Statue of Liberty Nebula
Image Credit & Copyright: S. Mazlin, J. Harvey, R. Gilbert, & D. Verschatse (SSRO/PROMPT/UNC)
It sounds like something straight out of Ghostbusters … today’s Astronomy Picture of the Day is The Statue of Liberty Nebula. Do you see her?
Explanation: What’s happening in the Statue of Liberty nebula? Bright stars and interesting molecules are forming and being liberated. The complex nebula resides in the star forming region called RCW 57. This image showcases dense knots of dark interstellar dust, bright stars that have formed in the past few million years, fields of glowing hydrogen gas ionized by these stars, and great loops of gas expelled by dying stars. A detailed study of NGC 3576, also known as NGC 3582 and NGC 3584, uncovered at least 33 massive stars in the end stages of formation, and the clear presence of the complex carbon molecules known as polycyclic aromatic hydrocarbons (PAHs). PAHs are thought to be created in the cooling gas of star forming regions, and their development in the Sun’s formation nebula five billion years ago may have been an important step in the development of life on Earth. The featured imagewas taken at the Cerro Tololo Inter-American Observatory in Chile.
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Everything you wanted to know about NASA’s Mission Juno, including the Juno Cam!
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They may have happened within days of one another, but the devastating earthquakes in Japan had nothing to do with the strong temblor that struck Ecuador over the weekend, experts say.
Both Japan and Ecuador are located along the so-called Pacific Ring of Fire, which spans the coasts lining the Pacific Ocean. The regions along the Ring of Fire are prone to earthquakes, but it’s extremely rare for an earthquake on one side of the world to trigger earthquakes on the other, said Ross Stein, CEO and co-founder of Temblor.net, a free website and smartphone application that helps people understand locations’ seismic risk.
For one thing, the earthquakes that hit Japan are a completely different type of quake than the one that struck Ecuador, Stein said. On April 14, a magnitude-6.2 earthquake hit southern Japan, and a day later, on April 15, a magnitude-7.0 earthquake struck the same region, according to the U.S. Geological Survey (USGS). [The 10 Biggest Earthquakes in History]
Both of these earthquakes were strike-slip earthquakes, Stein said, which occur when two parts of the Earth’s crust slide against each other. The best way to imagine this is to place your hands together, with your fingers pointing away from your body, and slide your left hand forward and your right hand backward.
Both of these strike-slip earthquakes were shallow — about 6 to 8 miles (10 to 12 kilometers) deep — and both were destructive, killing more than 40 people in total, according to news sources. But the second quake was about 20 times stronger than the first, and released about 400,000 times more energy than the amount unleashed by the atomic bomb dropped on Nagasaki in 1945, Stein and Volkan Sevilgen, the other Temblor.net co-founder, wrote in a blog post.
These two earthquakes in Japan were likely related, Stein said. However, it’s unclear whether the magnitude-6.2 earthquake was a foreshock of the magnitude-7.0 earthquake or the magnitude-7.0 earthquake was an aftershock of the magnitude-6.2 earthquake, Stein said.
“So far, the evidence suggests that both are true,” the experts wrote in the blog post. Though it’s rare for an aftershock to be larger than the main shock, it does happen, Stein told Live Science.
Regardless, the first earthquake made the faults near it more likely to rupture, which likely helped to trigger the second, larger earthquake, Stein said.
On Saturday (April 16), merely a day after the second Japanese earthquake, a massive magnitude-7.8 earthquake rocked Muisne, Ecuador, the USGS reported. [Image Gallery: This Millennium’s Destructive Earthquakes]
Unlike the strike-slip earthquakes in Japan, this one was a so-called megathrust quake, which occurs when one tectonic plate jams under another. In this case, the Nazca Plate is moving under the South American continent at a rate of about 2.2 to 2.4 inches (55 to 61 millimeters) a year, Stein and Sevilgen wrote in another blog post.
More than 400 deaths have been reported from the Ecuador quake so far.
This isn’t Muisne’s first large earthquake. Another magnitude-7.8 earthquake hit almost the exact location in 1942, Stein said. In fact, given that the subduction rate is about 2.3 inches (60 mm) a year, and nearly 75 years have elapsed since the last large earthquake, it makes sense that this is a “repeat earthquake,” Stein said.
Read more at the following site… cbsnews.com
Next year’s Christmas gift for the girl who needs a little more excitement in her life. Own the Sky! You know you want it.
Looking for a makerspace or group in the Valley? Here is a great place to get started finding inspiration and like-minded creative spirits.
Photo ADAPTED FROM IUPAC BY C. SMITH/SCIENCE
The newcomers are some of the heaviest elements ever discovered, with atomic numbers of 113, 115, 117, and 118. They will be named by the researchers who identified them.
WOW! Element 113 will become the first element to be named in Asia, with credit going to a group of Japanese researchers at the RIKEN Nishina Center for Accelerator-Based Science in Wako.
David C. Roy studied engineering, physics, and chemistry and ended up obtaining a physics degree from Boston University. Although it seems unlikely he gained an interest for art. He was influenced by his wife and his interest in motion which led him to create kinetic sculptures. His work is usually made of wood running on wind-up mechanisms and not on electricity. He has a studio in Connecticut where people can enjoy his artwork.
-Link to his website
9 Pieces of Star Wars Tech Now a Reality (list)
Fantasy turns to reality when people set creativity into motion. Whether movie producers predicted this phenomenon to happen or not, Star Wars made a huge global impact as far as the future was concerned some 38 years ago. #STEAM
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