The Ghetto Of Venice

It’s Friday...Come Space Out with Us

It’s Friday…which seems like a great excuse to take a look at some awesome images from space.

First, let’s start with our home planet: Earth.

This view of the entire sunlit side of Earth was taken from one million miles away…yes, one MILLION! Our EPIC camera on the Deep Space Climate Observatory captured this image in July 2015 and the picture was generated by combining three separate images to create a photographic-quality image.

Next, let’s venture out 4,000 light-years from Earth.

This image, taken by the Hubble Space Telescope, is not only stunning…but shows the colorful “last hurrah” of a star like our sun. This star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star’s remaining core. Our sun will eventually burn out and shroud itself with stellar debris…but not for another 5 billion years.

The material expelled by the star glows with different colors depending on its composition, its density and how close it is to the hot central star. Blue samples helium; blue-green oxygen, and red nitrogen and hydrogen.

Want to see some rocks on Mars?

Here’s an image of the layered geologic past of Mars revealed in stunning detail. This color image was returned by our Curiosity Mars rover, which is currently “roving” around the Red Planet, exploring the “Murray Buttes” region.

In this region, Curiosity is investigating how and when the habitable ancient conditions known from the mission’s earlier findings evolved into conditions drier and less favorable for life.

Did you know there are people currently living and working in space?

Right now, three people from three different countries are living and working 250 miles above Earth on the International Space Station. While there, they are performing important experiments that will help us back here on Earth, and with future exploration to deep space.

This image, taken by NASA astronaut Kate Rubins shows the stunning moonrise over Earth from the perspective of the space station.

Lastly, let’s venture over to someplace REALLY hot…our sun.

The sun is the center of our solar system, and makes up 99.8% of the mass of the entire solar system…so it’s pretty huge. Since the sun is a star, it does not have a solid surface, but is a ball of gas held together by its own gravity. The temperature at the sun’s core is about 27 million degrees Fahrenheit (15 million degrees Celsius)…so HOT!

This awesome visualization appears to show the sun spinning, as if stuck on a pinwheel. It is actually the spacecraft, SDO, that did the spinning though. Engineers instructed our Solar Dynamics Observatory (SDO) to roll 360 degrees on one axis, during this seven-hour maneuver, the spacecraft took an image every 12 seconds.

This maneuver happens twice a year to help SDO’s imager instrument to take precise measurements of the solar limb (the outer edge of the sun as seen by SDO).

Thanks for spacing out with us…you may now resume your Friday. 

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

Google translate does not concur, but it wouldn't surprise me

Giant panda’s scientific name was only given in 1870, by a French zoologist in Paris based on a dead speciment. It is ailuropoda melanoleuca – literally, “cat foot, black and white.”

Farmbot

Open source product is a robotic computer controlled home farming setup to grow your own food:

FarmBot Genesis is humanity’s first open-source CNC farming machine designed for at-home automated food production. 

More Here

OMG, so pretty

Stunning Bionic Insects Built From Computer Circuit Boards

UK-based artist Julie Alice Chappell (previously featured here) constructs stunning sculptures of insects with parts of vintage computers and video game systems for her taxonomic collection, called “Computer Component Bugs”. Using parts of Nintendo’s and DVD players, Chappell hopes to raise awareness of environmental waste. 

Chappell’s goal is to create an aesthetically beautiful creation, which also offers a socio-political discourse on the reclaimed waste and the destruction of the natural world with art. Chappell’s bionic insects can be found on Etsy shop!

View similar posts here!

“You fight like a girl.”

I’m sorry

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Horsehead Nebula // Barnard 33

The Secret to Small Drone Obstacle Avoidance Is to Just Crash Into Stuff

Small drones bumble through obstacles just like bees

Roboticists are putting a tremendous amount of time and effort into finding the right combination of sensors and algorithms that will keep their drones from smashing into things. It’s a very difficult problem: With a few exceptions, you’ve got small platforms that move fast and don’t have the payload capability for the kind of sensors or computers that you really need to do real-time avoidance of things like trees or powerlines. And without obstacle avoidance, how will we ever have drones that can deliver new athletic socks to our doorstep in 30 minutes or less?

At the University of Pennsylvania’s GRASP Lab, where they’ve been working very very hard at getting quadrotors to fly through windows without running into them, Yash Mulgaonkar, Luis Guerrero-Bonilla, Anurag Makineni, and Professor Vijay Kumar have come up with what seems to be a much simpler solution for navigation and obstacle avoidance with swarms of small aerial robots: Give them a roll cage, and just let them run into whatever is in their way. Seriously, it’ll be fine!

This kind of “it’ll be fine” philosophy is what you find in most small flying insects, like bees: They don’t worry all that much about bumbling into stuff, or each other, they just kind of shrug it off and keep on going. Or, if you’re a roboticist, you might say something like, “The penalty due to collisions is small at these scales and sensors and controllers are not precise enough to guarantee collision free trajectories,” so stop trying to solve the collision problem, and just focus on not completely trashing yourself when you hit something. (Swiss startup Flyability was among the first to demonstrate the benefits of collision robustness by equipping a regular-size drone with a gimballed protective cage and flying through forests and ice caves.)

Woman who loves science over here

Science Side of Tumblr, I need your help!  Ladies of the Science Side of Tumblr, I especially need your help!

I had a conversation at my non-science day job that went like this:

A friend who shall be called Diane (not her real name) comes to my desk to chat.  Just one of the many topics we discuss is that her boyfriend is  taking a class in wildlife biology.  She has decided that she has grown tired of hearing about local wildlife and hearing him recite a plethora of scientific names. 

I responded positively to this subject, and told her that I too found the subject interesting.  A third person had heard our conversation.  We shall call her Claire (again, not her real name).  Claire immediately responded, “Girls don’t like that kind of thing.”

“Are you saying that girls don’t like science?” I asked.

“No, not normally they don’t,” she responded.

Before you all screech with anguish, bear with me for a moment.  We all know that this is not true.  As a man, I find this idea upsetting for countless reasons that have all been validly discussed before.  To try to debate the issue is rather moot.  Instead, I’d like a show of hands.

Ladies of the Science Side of Tumblr!  I call you to arms!  Will you rally around me in saying that women can and do indeed love science, of any variety?  Gentleman of the Science Side of Tumblr who know someone who is a girl who also happens to love science, will you stand with me too?  We all like and reblog the pro-women-in-science posts we see so often, let’s all stand and be counted in one place this time.

Reblog this if you are a woman who loves science.  Reblog this if you are a man who knows a woman who loves science.  Let us disprove her beyond all doubt!

How To Be A Troll, And Win Wars

Under Sun Pin’s direction the Ch’i armies, which were advancing into Wei, followed the dictum “Be deceptive.”

P’ang Chüan arrogantly believed the men of Ch’i to be cowards who would flee rather than engage mighty Wei in battle. Therefore, Sun Pin daily reduced the number of cooking fires in the encampment to create a facade of every-increasing desertion. He also effected a tactical withdrawal to further entice P’ang Chüan into the favorable terrain at Ma-ling where the Ch’i commander concealed ten thousand crossbowman among the hills.

P’ang Chüan, apparently afraid that he would miss an opportunity to inflict a severe blow on the retreating Ch’i army, abandoned his heavy forces and supply train and rushed forth with only light units. Arriving at night, the combined Wei forces were ambushed as soon as they penetrated the killing zone.

In addition to being decisively defeated by Ch’i’s withering crossbow fire, 100,000 Wei soldiers needlessly perished because of their commander’s character flaws and hasty judgement.

The battle of Ma-ling is apparently the first recorded conflict in which crossbows were employed. The quote is taken from “Evolution of Conflicts and Weapons in China” in The Art of War by Sun Tzu.