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dj Busby
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"Thousands of years ago, a massive star near the end of its life exploded in a type II supernova, leaving behind a black hole at its center and sending its outer layers across the surrounding space. Some 1,500 light years away and 5,000–8,000 years later, that debris is 90 light years across. While the entire structure — the Cygnus Loop — is visible in the radio, infrared, ultraviolet (atop) and X-ray, the brightest visible feature is on the western edge: the Western Veil (or Witch’s Broom) nebula."

Every century or so, possibly even more frequently, a supernova goes off somewhere in the Milky Way galaxy. While the explosion itself is only visible for a few months, the remnant sticks around for many thousands of years. Despite the thinness of the bubble walls — just one part in 50,000 of the remnant’s radius — occasionally a fortuitous alignment allows various knotty wisps and tendrils to be seen by our own eyes where the remnant is edge-on to us. Hubble imaging reveals tremendous details, including the science that the fast interior gas could travel from the Earth to the Moon in just 15 minutes!
Supernova remnants return the insides of exploded stars back to the Universe, making things like us possible.
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A new anthem. This is the best thing. I'm floored.
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China has started assembling the world's largest radio telescope, which will have a dish the size of 30 football pitches when completed, state media reported as Beijing steps up its ambitions in outer space.
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In case you missed it, our New Horizons spacecraft "phoned home" around 9 p.m. EDT Tuesday, indicating that it had successfully completed its historic flyby of Pluto earlier in the day. Today, more ‪#‎PlutoFlyby‬ images of surface close-ups whave ten times the resolution of what we saw yesterday, with details as small as New York's Central Park. Stay tuned! http://www.nasa.gov/newhorizons
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Absolutely incredible.  Thanks +Philip Plait for finding it
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Quick Layman Explanation of New "Einstein Ring" and "Gravitational Lensing"
Circles like this are a product of a concept called Gravitational Lensing; and it's pretty easy to grasp.   If you visualize the distorted reflection we see in a droplet of water, and then realize that something big and dark with a field of gravity acts lik...
Circles like this are a product of a concept called Gravitational Lensing; and it's pretty easy to grasp.   If you visualize the distorted reflection we see in a droplet of water, and then realize that something big and dark ...
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If you didn't get a chance to see me talking about water on Mars on the Portland, OR NBC affiliate (KGW) last night, here's the video!
Astrophysicist talks Mars water and what's next
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Our one-year crew member NASA Astronaut Scott Kelly captured the sunrise over the western USA on Aug. 10, 2015 as he orbited Earth from the International Space Station. Details: http://go.nasa.gov/1L4aTb3
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"This is all possible thanks to the unique way these particular rubber trees grow: often high on a cliff or boulder, with their roots extending far down to the low water level below. By shaping these malleable roots carefully over long stretches of time — particularly if there are two good trees on opposite banks — spans in excess of 30 meters (100 feet) can easily be crossed."

The self-strengthening root bridges of India have lasted for hundreds of years, and only get stronger with time. Forget steel, concrete and modern alloys; the rubber tree Ficus Elastica seems to be the greatest architectural material of all!
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Monstrous Portland Conifers Are "No Biggie"
Look at the truck in the driveway to get the gist of how big this sucker is. Having a nice leisurely stroll near the Woodstock neighborhood in Portland, I saw this monster of a tree that stopped me in my tracks. We are really lucky to have such enormous cre...
Look at the truck in the driveway to get the gist of how big this sucker is. Having a nice leisurely stroll near the Woodstock neighborhood in Portland, I saw this monster of a tree that stopped me in my tracks. We are real...
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Weighing Black Hole In A Spiral Galaxy Confirms: We Are Tiny
ALMA's at it again.  I'm blown away, yet again. Crunching the numbers, ALMA has weighed the mass of the supermassive black hole at the center of this spiral barred galaxy called "NGC 1097." It's pretty awesome progress.  This is a combo image of the galaxy ...
ALMA's at it again. I'm blown away, yet again. Crunching the numbers, ALMA has weighed the mass of the supermassive black hole at the center of this spiral barred galaxy called "NGC 1097." It's pretty awesome progress.  This ...
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Perks of Portland Public Transit - You Get A View of Volcanoes
It really does make the experience a lot better.  Growing up on the East Coast there were ZERO volcanoes for me to appreciate while waiting for anything! This is Mount Hood if you're at the Holgate Max rail stop on the green line. ----- Share this specific ...
It really does make the experience a lot better.  Growing up on the East Coast there were ZERO volcanoes for me to appreciate while waiting for anything! This is Mount Hood if you're at the Holgate Max rail stop on the green ...
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"Science is the poetry of reality."
Introduction
I treasure astronomy, and also looking up at night.  I treasure twilight, sunsets, and connect the light with astrophysics and cosmology. I want people to remember that squeezing your toes in the sand can bring a smile to your face. I love acoustics, describing in my head the EQ of the waves crashing on the beach...
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http://astronasty.blogspot.com !!!!
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