Thursday, February 28, 2019

Cheap Enhancing Pills

Only at our store are decent prices on Cialis Brand.

Everything that may help you , we have on our site!

http://medbestsolution.su

Unsubscribe from this letter here

Order brand Viagra here

Cialis Daily. Have all the best in complex.

It will help you, it is sold on our site!

http://medbestsolution.su

Unsubscribe from this letter here

Intimating is much more intensive and hotter with our tabs!

Love knows no age. Cialis Super Active helps to feel it.

We will fill your life with joy!

http://medbestsolution.su

Unsubscribe from this letter here

DAY IN REVIEW

What's Up in the March Skies?
What can you see in the March sky? Jupiter and other planets in the morning, a change of seasons and an open star cluster called the Beehive.
› Watch the video

Celebrate Pi Day with NASA on March 14

Celebrate Pi Day With NASA on March 14

On March 14, NASA will join schools, students and science centers across the U.S. as they celebrate one of the most well known and beloved numbers: 3.14, or pi. Used throughout the STEM world – especially for space exploration – pi is the number that results from dividing the circumference of any circle by its diameter. Pi can be and often is rounded to 3.14 even though its decimals never end, which is why the date 3/14 has been designated National Pi Day.

Looking for educational resources and activities to add to your Pi Day celebration? Check out these free offerings from the Education Office at NASA's Jet Propulsion Laboratory:

NASA Pi Day Challenge

Each year, the JPL Education Office creates an illustrated Pi Day math challenge that features real-world problems NASA scientists and engineers solve to explore space. The 2019 challenge will be available as both a standards-aligned lesson for the classroom and as an activity students can do on their own. Answers will be released the day after Pi Day. Explore our collection of lessons and problems from previous years' challenges at the links below, and check back on March 8 to participate in the 2019 NASA Pi Day Challenge!

The 2019 challenge goes online March 8!

› For Educators: Pi Day Challenge Lessons

› For Students: Take the NASA Pi Day Challenge (slideshow)

More Pi Resources

Article: How Many Decimals of Pi Do We Really Need? – While there are those who have memorized more than 70,000 digits of pi, JPL engineer Marc Rayman explains why you really only need a tiny fraction of that for even the highest-accuracy calculations at NASA.
› Read more

Article: Oh, the Places We Go: How NASA Uses Pi?

Article: Oh, the Places We Go: 18 Ways NASA Uses Pi – Whether it's sending spacecraft to other planets, driving rovers on Mars, finding out what planets are made of or how deep alien oceans are, pi takes us far at NASA. Find out how pi helps us explore space.
› Read more

Share: Pi Day – What's Going 'Round – Tell us how you're celebrating Pi Day this year.
› Share your story

Oh, where have you been all my life!

Looking for hot girls and milfs?

Want sex tonight, and new pussy every day?

Go to this site and choose any of cool girls! And they are ready to fuck with you!

http://mysweetgirls.su

Here are some of them, see photo below

In any case, I am happy that we met

Looking for hot girls and milfs?

Want sex tonight, and new pussy every day?

Go to this site and choose any of cool girls! And they are ready to fuck with you!

http://mysweetgirls.su/gi/

Here are some of them, see photo below

what are your plans for the weekend?

This summary is not available. Please click here to view the post.

That's why I love our parties! Just look here

Looking for hot girls and milfs?

Want sex tonight, and new pussy every day?

Go to this site and choose any of cool girls! And they are ready to fuck with you!

http://mysweetgirls.su

Here are some of them, see photo below

Super pilules of male power!

Words are useless with Cialis Brand.

We have the largest selection!

http://medsforyou.su

Unsubscribe from this letter here

World Genuine blue pills

Healthy body and strong erection! Choose Cialis Professional.

WE have the largest price list!

http://medsforyou.su

Unsubscribe from this letter here

Wednesday, February 27, 2019

World Brand-Name Ero-Boosters on the Web

Get extended possibilities with Cialis Brand. Buy at our store!

Buy right now!

http://medsforyou.su

Unsubscribe from this letter here

World Pharmacy for Virility

You can make it all! Purchase Cialis Brand now.

Buy right now!

http://medsforyou.su

Unsubscribe from this letter here

DAY IN REVIEW

Why Do Some Galactic Unions Lead to Doom?

Three images from NASA's Spitzer Space Telescope show pairs of galaxies on the cusp of cosmic consolidations. Though the galaxies appear separate now, gravity is pulling them together, and soon they will combine to form new, merged galaxies. Some merged galaxies will experience billions of years of growth. For others, however, the merger will kick off processes that eventually halt star formation, dooming the galaxies to wither prematurely.

Only a few percent of galaxies in the nearby universe are merging, but galaxy mergers were more common between 6 billion and 10 billion years ago, and these processes profoundly shaped our modern galactic landscape. For more than 10 years, scientists working on the Great Observatories All-sky LIRG Survey, or GOALS, have been using nearby galaxies to study the details of galaxy mergers and to use them as local laboratories for that earlier period in the universe's history. The survey has focused on 200 nearby objects, including many galaxies in various stages of merging. The images above show three of those targets, imaged by Spitzer.

In these images, different colors correspond to different wavelengths of infrared light, which are not visible to the human eye. Blue corresponds to 3.6 microns, and green corresponds to 4.5 microns - both strongly emitted by stars. Red corresponds to 8.0 microns, a wavelength mostly emitted by dust.

One of the primary processes thought to be responsible for a sudden halt in star formation inside a merged galaxy is an overfed black hole. At the center of most galaxies lies a supermassive black hole - a powerful beast millions to billions of times more massive than the Sun. During a galactic merger, gas and dust are driven into the center of the galaxy, where they help make young stars and also feed the central black hole.

But this sudden burst of activity can create an unstable environment. Shockwaves or powerful winds produced by the growing black hole can sweep through the galaxy, ejecting large quantities of gas and shutting down star formation. Sufficiently powerful or repetitive outflows can hinder the galaxy's ability to make new stars.

The relationship between mergers, bursts of star formation, and black hole activity is complex, and scientists are still working to understand it fully. One of the newly merged galaxies is the subject of a detailed study with the W.M. Keck Observatory in Hawaii, in which GOALS scientists searched for galactic shockwaves driven by the central active galactic nucleus, an extremely bright object powered by a supermassive black hole feeding on material around it. The lack of shock signatures suggests that the role of active galactic nuclei in shaping galaxy growth during a merger may not be straightforward.

Merging galaxies in the nearby universe appear especially bright to infrared observatories like Spitzer. GOALS studies have also relied on observations of the target galaxies by other space-based observatories, including NASA's Hubble and Chandra space telescopes, the European Space Agency's Herschel satellite, as well as facilities on the ground, including the Keck Observatory, the National Science Foundation's Very Large Array and the Atacama Large Millimeter Array.

JPL manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate in Washington. Science operations are conducted at the Spitzer Science Center at Caltech in Pasadena, California. Spacecraft operations are based at Lockheed Martin Space in Littleton, Colorado. Data are archived at the Infrared Science Archive housed at IPAC at Caltech.

More information about the GOALS survey is available at the following site:

http://goals.ipac.caltech.edu/