Space Calendar June 4 – June 10 2014

Space related activities and anniversaries for June 4 – June 10 2014. Fetched live every week from NASA JPL

If you want the complete list going more than a year ahead then see the Space Calendar at NASA JPL.

Space Calendar May 28 – June 3 2014

Space related activities and anniversaries for May 28 – June 3 2014. Fetched live every week from NASA JPL

If you want the complete list going more than a year ahead then see the Space Calendar at NASA JPL.

Space Calendar May 21 – May 27 2014

Space related activities and anniversaries for May 21 – May 27 2014. Fetched live every week from NASA JPL

If you want the complete list going more than a year ahead then see the Space Calendar at NASA JPL.

Space Calendar May 14 – May 20 2014

Space related activities and anniversaries for May 14 – May 20 2014. Fetched live every week from NASA JPL

If you want the complete list going more than a year ahead then see the Space Calendar at NASA JPL.

NASA Delivers New Insight into Star Cluster Formation

NASA Delivers New Insight into Star Cluster Formation

Using data from NASA’s Chandra X-ray Observatory and infrared telescopes, astronomers have made an important advance in the understanding of how clusters of stars come into being.

The data show early notions of how star clusters are formed cannot be correct. The simplest idea is stars form into clusters when a giant cloud of gas and dust condenses. The center of the cloud pulls in material from its surroundings until it becomes dense enough to trigger star formation. This process occurs in the center of the cloud first, implying that the stars in the middle of the cluster form first and, therefore, are the oldest.

However, the latest data from Chandra suggest something else is happening. Researchers studied two clusters where sun-like stars currently are forming – NGC 2024, located in the center of the Flame Nebula, and the Orion Nebula Cluster. From this study, they discovered the stars on the outskirts of the clusters actually are the oldest.

[SOURCE: spitzer.caltech.edu]

Space Calendar May 7 – May 13 2014

Space related activities and anniversaries for May 7 – May 13 2014. Fetched live every week from NASA JPL

If you want the complete list going more than a year ahead then see the Space Calendar at NASA JPL.

Hubble Astronomers Check the Prescription of a Cosmic Lens

Hubble Astronomers Check the Prescription of a Cosmic Lens

What could be more exciting than watching the fireworks of cataclysmic stellar explosions outshining entire galaxies of stars? How about watching them through the funhouse lens of a massive cluster of galaxies whose powerful gravity warps space around it?

In fact, distant exploding stars observed by NASA’s Hubble Space Telescope are providing astronomers with a powerful tool to check the prescription of these natural “cosmic lenses,” which are used to provide a magnified view of the remote universe.

Two teams of astronomers working independently have found three such exploding stars, called supernovae, far behind massive clusters of galaxies. Their light was amplified and brightened by the immense gravity of the foreground clusters in a phenomenon called gravitational lensing. First predicted by Albert Einstein, this effect is similar to a glass lens bending light to form an image. Astronomers use the gravitational-lensing technique to search for distant objects that might otherwise be too faint to see, even with today’s largest telescopes.

[SOURCE: hubblesite.org]