Chasms on Dione

Chasms on Dione

Week In Images

Week In Images

Rosetta's big day in the Sun

Rosetta's big day in the Sun

New Horizons | NASA

New Horizons | NASA

Expedition 44 | NASA

Expedition 44 | NASA

Then and now

Then and now

A LOOK A YOUNG STARS IN NGC 1333

FROM:  NASA

While fireworks only last a short time here on Earth, a bundle of cosmic sparklers in a nearby cluster of stars will be going off for a very long time. NGC 1333 is a star cluster populated with many young stars that are less than 2 million years old, a blink of an eye in astronomical terms for stars like the Sun expected to burn for billions of years.

This new composite image combines X-rays from NASA’s Chandra X-ray Observatory (pink) with infrared data from the Spitzer Space Telescope (red) as well as optical data from the Digitized Sky Survey and the National Optical Astronomical Observatories’ Mayall 4-meter telescope on Kitt Peak (red, green, blue). The Chandra data reveal 95 young stars glowing in X-ray light, 41 of which had not been identified previously using infrared observations with Spitzer because they lacked infrared emission from a surrounding disk.


To make a detailed study of the X-ray properties of young stars, a team of astronomers, led by Elaine Winston from the University of Exeter, analyzed both the Chandra X-ray data of NGC 1333, located about 780 light years from Earth, and of the Serpens cloud, a similar cluster of young stars about 1100 light years away. They then compared the two datasets with observations of the young stars in the Orion Nebula Cluster, perhaps the most-studied young star cluster in the Galaxy.

The researchers found that the X-ray brightness of the stars in NGC 1333 and the Serpens cloud depends on the total brightness of the stars across the electromagnetic spectrum, as found in previous studies of other clusters. They also found that the X-ray brightness mainly depends on the size of the star. In other words, the bigger the stellar sparkler, the brighter it will glow in X-rays.

These results were published in the July 2010 issue of the Astronomical Journal and are available online. NASA's Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, controls Chandra's science and flight operations.

JPL manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at the California Institute of Technology in Pasadena. Spacecraft operations are based at Lockheed Martin Space Systems Company, Littleton, Colorado.

Image credit: X-ray: NASA/CXC/SAO/S.Wolk et al; Optical: DSS & NOAO/AURA/NSF; Infrared: NASA/JPL-Caltech.

MYSTERIOUS LIGHTS ON PLANET CERES

FROM:  NASA 

A cluster of mysterious bright spots on dwarf planet Ceres can be seen in this image, taken by NASA's Dawn spacecraft from an altitude of 2,700 miles (4,400 kilometers). The image, with a resolution of 1,400 feet (410 meters) per pixel, was taken on June 9, 2015.  Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.

Born-again nebula

Born-again nebula

RON GARAN TWEETED IMAGE OF A SHOOTING STAR?

FROM:  NASA

 Astronaut Ron Garan, Expedition 28 flight engineer, tweeted this image from the International Space Station in August, 2011 with the following caption: “What a `Shooting Star’ looks like from space, taken yesterday during Perseid Meteor Shower.”  A special camera to record meteor showers will launch to the International Space Station aboard SpaceX's Dragon cargo craft, currently scheduled to launch on June 28, 2015, from Cape Canaveral Air Force Station, Florida.

The Meteor investigation should be installed in the station’s Window Observational Research Facility by the end of July, enabling scientists to learn more about the composition and behavior of asteroids and comets that cross paths with Earth. The investigation's camera is programmed to record known major meteor showers during its two-year orbit and could spot unpredicted showers as well.  Image Credit: NASA.

Dark science

Dark science

Pedal to the Metal – RS-25 Engine Revs Up Again

Cool summer boosts Arctic ice

Cool summer boosts Arctic ice

Cool summer boosts Arctic ice

Cool summer boosts Arctic ice

A VIEW OF EARTH'S AURORAS FROM ASTRONAUT SCOTT KELLY

FROM:  NASA

NASA astronaut Scott Kelly captured photographs and video of auroras from the International Space Station on June 22, 2015. Kelly wrote, "Yesterday's aurora was an impressive show from 250 miles up. Good morning from the International Space Station! ‪#‎YearInSpace‬"  Image Credit: NASA.