[ 2013 ] VOL [ 30 ] ISSUE [ 02 ]
Hubble Cycle 21 Proposal Selection <em>Hubble</em> Cycle 21 Proposal Selection

During the week of 14–18 May, 2013, led by the Cycle 21 TAC chair, Dr. Debra Elmegreen, 135 panelists and TAC members reviewed the 1,094 Cycle 21 proposals. Follow the process from beginning to end, culminating in the list of accepted proposals.  (A. Fox, C. Leitherer, B. Blacker, & I. N. Reid)

Staying Sharp: Keeping Hubble and Webb Seeing Clearly Staying Sharp: Keeping <em>Hubble</em> and <em>Webb</em> Seeing Clearly

Hubble and Webb are two different types of space telescopes, operating in different environments. Though the tasks of maintaining their optical alignments share many of the same basic principles, the actual techniques and processes bear less resemblance, and it is interesting to compare and contrast the two telescopes in terms of wavefront sensing and control. (M. Lallo et al.)

Webb Update <em>Webb</em> Update

Summer 2013 proved to be a busy time for the James Webb Space Telescope, and significant progress was made on several fronts.  Key hardware and instruments were delivered, and testing commenced.  Momentum is building in the Webb project. We are planning special activities for outreach to the community at the January 2014 American Astronomical Society (AAS) meeting in Washington, DC. (R. Osten)

Wide-Field Slitless Spectroscopy with Webb’s NIRISS Wide-Field Slitless Spectroscopy with <em>Webb</em>’s NIRISS

The Webb’s Near Infrared Imager and Slitless Spectrograph (NIRISS) will offer several innovative observing modes, one of which is wide-field slitless spectroscopy (WFSS). This mode provides a mean resolving power (λ/Δλ) of 150 over the wavelength range 0.8–2.25 microns. The wavelength coverage has been optimized for the detection of Lyα emission lines and breaks in the spectra of galaxies at redshifts 6 to 17, to probe the first stars and ionizing sources in the early universe. (V. Dixon & C. Willott)

Observing Galaxy Assembly with the James Webb Space Telescope Observing Galaxy Assembly with the <em>James Webb Space Telescope</em>

Three factors will make Webb exquisitely suitable for detecting the faintest and furthest galaxies, and for charting the history of their assembly: its large aperture compared with Hubble, its superb infrared (IR) detectors, and the dark IR sky background at its operating location, the second Lagrange point, L2.  (R. A. Windhorst)

Webb: The Stiffest Backbone in Space <em>Webb</em>: The Stiffest Backbone in Space

Across the country, teams of highly skilled engineers and technicians are building the backbone of the mighty James Webb Space Telescope.  While its sheer size and visual complexity are impressive, the backbone’s engineering breakthrough is its amazing ability to remain almost perfectly still and rigid under extreme environmental conditions. (B. Bullock)

Barbara A. Mikulski Archive for Space Telescopes Barbara A. Mikulski Archive for Space Telescopes

The Barbara A. Mikulski Archive for Space Telescopes is NASA’s data repository for astronomy missions in the ultraviolet–optical wavelength range, including both active and legacy missions. MAST supports the astronomical community by facilitating access to its collections, offering expert user support, and providing software for calibration and analysis. (A. Koekemoer, for the MAST team)

The CANDELS Multi-Cycle Treasury Program The CANDELS Multi-Cycle Treasury Program

The 900-orbits’ worth of CANDELS observations were designed to document the first third of galactic evolution from z = 8 to 1.5 via deep imaging of more than 250,000 galaxies with the WFC3/IR and the ACS. Together with the CLASH observations, another aim has been to find and characterize Type Ia supernovae beyond z > 1.5, and to establish their accuracy as standard candles for cosmology.  This article focuses on a few of the science highlights, typically from about a third of the full survey data. (H. Ferguson & the CANDELS team)

Cluster Lensing and Supernovae Survey with Hubble (CLASH) Cluster Lensing and Supernovae Survey with <em>Hubble</em> (CLASH)

To shed new light on the intriguing composition of our universe, we coupled Hubble’s panchromatic imaging capabilities—the Wide Field Camera 3 and Advanced Camera for Surveys—with the gravitational-lensing power of 25 massive galaxy clusters, to test models of the formation of cosmic structure and to probe the high-redshift universe with unprecedented precision. Our 524-orbit Multi-Cycle Treasury program, dubbed CLASH, successfully completed all its observations in July 2013. (M. Postman)

The Many Lives of Data: New Science from the Hubble Archive The Many Lives of Data: New Science from the <em>Hubble</em> Archive

Far from being relegated to a dusty electronic retirement after fulfilling their primary purpose, archival data can often be repurposed to accomplish different science, which brings new life to the data. As the holdings at the Mikulski Archive for Space Telescopes have grown, such opportunities have increased. These days, the science that can be done with archival data is limited only by the creativity of the astronomer. (R. Osten)

A View of the Earth A View of the Earth

Perched outside Hubble, Mike Massimino was trying to access and replace the power supply for STIS—an instrument not intended to be serviced.  Before he could even attempt the complicated repair, the handrail blocking the access panel had to be removed.  And there was one screw that simply wouldn't budge... (M. Massimino)

The Institute’s Educational Programs The Institute’s Educational Programs

Hubble’s discoveries offer unprecedented opportunities to inspire, engage, and educate students of all ages and backgrounds in the fundamental STEM concepts. Could a small group of scientists and educators transform the breathtaking discoveries from Hubble into meaningful and measurable educational products for America’s schools, potentially reaching millions of youths at a time? (H. Jirdeh, B. Eisenhamer, & D. Smith)