29 novembro 2017

M33: Triangulum Galaxy


The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to be a satellite of the Andromeda Galaxy and astronomers in these two galaxies would likely have spectacular views of each other's grand spiral star systems. As for the view from planet Earth, this sharp composite image nicely shows off M33's blue star clusters and pinkish star forming regions along the galaxy's loosely wound spiral arms. In fact, the cavernous NGC 604 is the brightest star forming region, seen here at about the 7 o'clock position from the galaxy center. Like M31, M33's population of well-measured variable stars have helped make this nearby spiral a cosmic yardstick for establishing the distance scale of the Universe.

from NASA http://ift.tt/2zzRm20
via IFTTT
Read More

During World War II, a Polish underground newspaper (the well-named Liberty Brigade) was the first...

During World War II, a Polish underground newspaper (the well-named Liberty Brigade) was the first to publish a news story exposing the Nazi death camps.

Read More

Visit –>...



Visit –> http://ift.tt/UFcu1L for completely free access to an outstanding collection of the most influential journal articles ever published in the history of psychology; including ‘Transmission of Aggression Through Imitation of Aggressive Models (The Bobo Doll Experiment)’ by Albert Bandura.

Read More

Did you know that western Europe’s megaliths predate the...



Did you know that western Europe’s megaliths predate the great pyramids of Egypt?

The earliest megalithic burial mound was built between 3790 and 3690 BCE, in southern Spain. The earliest great pyramid in Egypt, the step pyramid of Djoser, was constructed between 2630 BCE and 2611 BCE – about 1,000 years after the first megalith.

Read More

Behavioral Economics

Behavioral Economics:

Visit –> http://ift.tt/2n1qdxV to learn all about behavioral economics. A rapidly growing discipline that draws upon psychological insights to investigate economic decision making.

Read More

Visit –>...



Visit –> http://ift.tt/2AhavsZ to read Fernald’s pioneering article in full for free!

Read More
Related Posts Plugin for WordPress, Blogger...
eXTReMe Tracker
Designed ByBlogger Templates