Hubble Sees an Ancient Globular Cluster

This image captures the stunning NGC 6535, a globular cluster 22,000 light-years away in the constellation of Serpens (The Serpent) that measures one light-year across.

Globular clusters are tightly bound groups of stars which orbit galaxies. The large mass in the rich stellar centre of the globular cluster pulls the stars inward to form a ball of stars. The word globulus, from which these clusters take their name, is Latin for small sphere.

Globular clusters are generally very ancient objects formed around the same time as their host galaxy. To date, no new star formation has been observed within a globular cluster, which explains the abundance of aging yellow stars in this image, most of them containing very few heavy elements.

NGC 6535 was first discovered in 1852 by English astronomer John Russell Hind. The cluster would have appeared to Hind as a small, faint smudge through his telescope. Now, over 160 years later, instruments like the Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3) on the NASA/ European Space Agency (ESA) Hubble Space Telescope allow us to marvel at the cluster and its contents in greater detail.

European Space Agency
Credit: ESA/Hubble & NASA, Acknowledgement: Gilles Chapdelaine via NASA http://ift.tt/1vsB3tl

Advertisements

Paid Notice: Deaths ERSKINE, ROBERT S. JR. by Unknown Author


By Unknown Author

ERSKINE–Robert S. Jr.,passed away in Essex, Connecticut on December 20, 2014. Born in Bronxville, New York to Robert and Marguerite Erskine, Bob attended Deerfield Academy and Harvard University before earning his JD from Columbia Law School in…

Published: December 22, 2014 at 07:00PM

from NYT Paid Death Notices http://query.nytimes.com/gst/fullpage.html?res=9B01E1DB1F3AF930A15751C1A9629D8B63

Space Simulation Chamber Prepared for Testing Webb Telescope

This photo was captured from outside the enormous mouth of NASA’s giant thermal vacuum chamber, called Chamber A, at Johnson Space Center in Houston. Previously used for manned spaceflight missions, this historic chamber is now filled with engineers and technicians preparing a lift system that will be used to hold the James Webb Space Telescope during testing.

The James Webb Space Telescope is the scientific successor to NASA’s Hubble Space Telescope. It will be the most powerful space telescope ever built. Webb is an international project led by NASA with its partners, the European Space Agency and the Canadian Space Agency.

> Related: Amazing View of Engineers Preparing NASA’s Gigantic Space Simulation Chamber for Massive Test

Image Credit: NASA/Chris Gunn via NASA http://www.nasa.gov/content/space-simulation-chamber-prepared-for-testing-webb-telescope

View of the Alps From Space

Expedition 42 Flight Engineer Samantha Cristoforetti of the European Space Agency (ESA) took this photograph of the Alps from the International Space Station, and posted it to social media on Tuesday, Dec. 23, 2014. She wrote, “I’m biased, but aren’t the Alps from space spectacular? What a foggy day on the Po plane, though! #Italy”

Image Credit: NASA/ESA/Samantha Cristoforetti via NASA http://www.nasa.gov/content/view-of-the-alps-from-space

Paid Notice: Deaths KAHN, RICHARD SANDERS by Unknown Author


By Unknown Author

KAHN–Richard Sanders. 88, of New York City and Martinsville, NJ, died Tuesday, December 2nd, 2014 at home with his family by his side. Born in Miami, FL, Richard, an only child, moved with his parents to NYC in the 1930’s; a city he adored and was…

Published: December 20, 2014 at 07:00PM

from NYT Paid Death Notices http://query.nytimes.com/gst/fullpage.html?res=9F06E3DC1F3AF932A15751C1A9629D8B63

Paid Notice: Deaths ERNST, ROGER by Unknown Author


By Unknown Author

ERNST–Roger. Roger Ernst, passed away in Tampa, Florida on November 17, 2014, surrounded by his children. Born in New York City to Morris L. and Margaret Ernst, Roger attended City and Country School, George School, Williams College, and the…

Published: December 20, 2014 at 07:00PM

from NYT Paid Death Notices http://query.nytimes.com/gst/fullpage.html?res=9C04E4DC1F3AF932A15751C1A9629D8B63

Paid Notice: Deaths SAVIN, ROBERT S. by Unknown Author


By Unknown Author

SAVIN–Robert S.,89, of Palm Beach Gardens, FL, formerly of Mamaroneck, NY, passed away December 18th from Alzheimer’s Disease. He was born and raised in Bridgeport, CT, was an US Army Veteran, and married in July 1951 to Barbara Low. In 1954 he…

Published: December 20, 2014 at 07:00PM

from NYT Paid Death Notices http://query.nytimes.com/gst/fullpage.html?res=9806E2DC1F3AF932A15751C1A9629D8B63