Moon and the ISS l Rami Ammoun
Show & Tell
Lint Roller? I Barely Know Her
Keni
will byers stan first human second
taylor price
art blog(derogatory)
trying on a metaphor

pixel skylines
Cosmic Funnies
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❣ Chile in a Photography ❣
Not today Justin
i don't do bad sauce passes
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I'd rather be in outer space 🛸
DEAR READER
noise dept.
dirt enthusiast

祝日 / Permanent Vacation

Kiana Khansmith

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@sl33pyf0ll0w
Moon and the ISS l Rami Ammoun
5 Unpredictable Things Swift Has Studied (and 1 It’s Still Looking For)
Our Neil Gehrels Swift Observatory — Swift for short — is celebrating its 20th anniversary! The satellite studies cosmic objects and events using visible, ultraviolet, X-ray, and gamma-ray light. Swift plays a key role in our efforts to observe our ever-changing universe. Here are a few cosmic surprises Swift has caught over the years — plus one scientists hope to see.
ismailboumhand16
polygon laps
spinsphere
sea urchin
WATCH: Incredible Fungi Timelapse from Planet Earth II [video]
Solar System: Things to Know This Week
From observing our moon to Saturn’s mini solar system …here are a few things you should know about our solar system this week:
1. What a Long, Strange—and Revealing—Trip It’s Been
As the Cassini mission builds toward its climactic “Grand Finale,” we’re taking a look back at the epic story of its journey among Saturn’s mini-solar system of rings and moons.
+ Traverse the timeline
2. Our Very Own Moon
Unlike Saturn, Earth has only one moon. Let’s celebrate it! International Observe the Moon Night (InOMN) is a worldwide, public celebration of lunar science and exploration held annually. On Oct. 8, everyone on Earth is invited to observe and learn about the moon together, and to celebrate the cultural and personal connections we all have with it.
+ Join in
3. What’s Up, October?
Even more about Earth’s moon is the subject of this month’s video guide for sky watchers and includes a look at the moon’s phases and when to observe them. Also featured are a guide to upcoming meteor showers and tips on how to catch a glimpse of Saturn.
+ Take a look
4. Nine Lives
Dawn’s discoveries continue, even as the asteroid belt mission marks nine years in space. “For such an overachiever,” writes Dawn’s top scientist, “it’s fitting that now, on its ninth anniversary, the spacecraft is engaged in activities entirely unimagined on its eighth.”
+ Learn more
5. The Incredible Shrinking Mercury
It’s small, it’s hot, and it’s shrinking. Research funded by us suggests that Mercury is contracting even today. This means we now know that Mercury joins Earth as a tectonically active planet.
+ Get the small details
Discover the full list of 10 things to know about our solar system this week HERE.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Nature manifests itself in patterns. The interweaving of math with these patterns produces euphoria
What do you see ? Let use know in the comments :)
Quench your thirst for knowledge with:
More about Pascals triangle and Binary Trees - Vihart
Scary Sierpinski Skull Time
Mathematical secrets of the pascal’s triangle
I remember I have said once mathematics is boring. I was so stupid!
Photos Of Geometrical Plants For Symmetry Lovers
#mathart
Nature - master of golden ratio
“Man must rise above the Earth—to the top of the atmosphere and beyond—for only thus will he fully understand the world in which he lives.” – Socrates This is an awe-inspiring capture of STS-11/41B rising above the clouds back in 1984.
Why Bennu?
Our OSIRIS-REx spacecraft will travel to a near-Earth asteroid, called Bennu, where it will collect a sample to bring back to Earth for study.
But why was Bennu chosen as the target destination asteroid for OSIRIS-REx? The science team took into account three criteria: accessibility, size and composition.
Accessibility: We need an asteroid that we can easily travel to, retrieve a sample from and return to Earth, all within a few years time. The closest asteroids are called near-Earth objects and they travel within 1.3 Astronomical Units (AU) of the sun. For those of you who don’t think in astronomical units…one Astronomical Unit is approximately equal to the distance between the sun and the Earth: ~93 million miles.
For a mission like OSIRIS-REx, the most accessible asteroids are somewhere between 0.08 – 1.6 AU. But we also needed to make sure that those asteroids have a similar orbit to Earth. Bennu fit this criteria! Check!
Size: We need an asteroid the right size to perform two critical portions of the mission: operations close to the asteroid and the actual sample collection from the surface of the asteroid. Bennu is roughly spherical and has a rotation period of 4.3 hours, which is in our size criteria. Check!
Composition: Asteroids are categorized by their spectral properties. In the visible and infrared light minerals have unique signatures or colors, much like fingerprints. Scientists use these fingerprints to identify molecules, like organics. For primitive, carbon-rich asteroids like Bennu, materials are preserved from over 4.5 billion years ago! We’re talking about the start of the formation of our solar system here! These primitive materials could contain organic molecules that may be the precursors to life here on Earth, or elsewhere in our solar system.
Thanks to telescopic observations in the visible and the infrared, as well as in radar, Bennu is currently the best understood asteroid not yet visited by a spacecraft.
All of these things make Bennu a fascinating and accessible asteroid for the OSIRIS-REx mission.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
The Gaussian Integral is a beautiful integral for which the area between the e^(-x^2) and the x-axis from negative infinity to positive infinity perfectly equals the square root of pi. Image sources: 1, 2.
In honor of pi day!