What’s Up For July 2016?

Quantum phenomenon in neutron star (video) https://goo.gl/OcDlcz

Το Αιγαίο από το διάστημα! Το φαινόμενο sunglint στο Αιγαίο από το διαστημοσυσκευή MODIS της NASA via NASA Earth. Διαβάστε περισσότερα εδώ: https://goo.gl/LqUgJJ

A hypotrochoid is a roulette traced by a point P attached to a circle of radius b rolling around the inside of a fixed circle of radius a, where P is a distance h from the center of the interior circle. The parametric equations for a hypotrochoid are:

x=(a-b)cost + hcos[(a-b)t/b] y=(a-b)sint + hsin[(a-b)t/b]

Happy #Darwin Day!

Synthetic membranes created to mimic properties of living cells

Living cells continually remodel their membranes to change their physical characteristics, a process that can affect the behavior of other biomolecules in the cell membrane.

Biochemists at the University of California San Diego have developed artificial cell membranes that grow and remodel themselves in a manner similar to that of living mammalian cells.

The achievement, detailed in a paper published in this week’s issue of the Proceedings of the National Academy of Sciences, follows the successful design last year in the same laboratory of artificial, or synthetic, cell membranes capable of sustaining continual growth. The two developments now bring the researchers closer to mimicking all of the properties of living mammalian cell membranes with synthetic components.

That’s important because synthetic membranes that accurately mimic the behavior of living mammalian cell membranes could be used by biomedical researchers to develop more effective drugs that target membrane proteins and better understand the chemical changes that occur in dysfunctional membranes during disease.

“While artificial membranes have been used to model the properties of native membranes, previous methods have not been able to mimic lipid membrane remodeling,” said Neal Devaraj, an associate professor of chemistry and biochemistry at UC San Diego who headed the research team for both studies. “In our latest study, we show that reversible chemical reactions can be harnessed to achieve spontaneous remodeling of lipids in synthetic membranes.”

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The history of Hubble - Η ιστορία του διαστημικού τηλεσκοπίου που έχει γράψει ιστορία με τις φωτογραφίες του, Hubble.

Can You #SpotHubble?

Hey Tumblr! We’re Inviting You to #SpotHubble

Since its launch in 1990, the Hubble Space Telescope has sent back mind-blowing images that not only changed our understanding of our universe, but also changed where we see our universe.

Hubble is more than a science instrument; it’s a cultural phenomenon! Take a moment to think about where you’ve seen the Hubble Space Telescope or Hubble images in your daily life. 

Maybe you walk by a mural inspired by Hubble images everyday on your way to work. 

Perhaps you’ve even created art based on Hubble images.

We want to see the Hubble impact in your life! Share your photos with us on Instagram, Twitter, Flickr and Facebook. If a #SpotHubble image catches our eye, we may share your post on our NASA Hubble social media accounts.

Here’s how to #SpotHubble!

There are four social media platforms that you can use to submit your work:

Flickr: Submit your photos to the Spot Hubble Flickr Group

Instagram: Use the Instagram app to upload your photo, and in the description include #SpotHubble and #NASAGoddard

Twitter: Share your image on Twitter and include #SpotHubble in the tweet

Facebook: Share your image on Facebook and include #SpotHubble in the post

Please note, submissions are subject to certain terms and conditions.

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

Help the Association of Astrophysics of Asea (https://www.facebook.com/astroasea/) to build an Astronomical Observatory in Asea, Arcadia, Greece! Donations made via Jump Start (http://www.jumpstartgreece.com/projects/arcadian-astronomical-observatory-astro-tourism/)! http://www.sciencephysics4all.com/902rhothetarhoalpha1/arcadian-astronomical-observatory-astro-tourism

Βοήθησε και εσύ τον Σύλλογο Αστροφυσικής Ασέας (https://www.facebook.com/astroasea/) να κατασκευάσει ένα Αστεροσκοπείο στην Ασέα Αρκαδίας! Οι δωρεές γίνονται μέσω της ιστοσελίδας Jump Start (http://www.jumpsttgreece.com/projects/arcadian-astronomical-observatory-astro-tourism/)!