With a full suite of new or refurbished instruments available to proposers, 1,051 proposals were submitted. As a reflection of Hubble’s new capabilities, Cycle 18 has seen one of the highest oversubscriptions in the history of the telescope. About nine times more orbits were requested than were available, and six times more proposals were submitted than approved.
(Claus Leitherer and Daniel Apai)
From maximizing Hubble's capabilities by reducing project turnaround times, to choosing the best mix of proposals and users, to new ways of keeping users informed—we're looking for your input! (Brad Whitmore)
The WFC and SBC of the Advanced Camera for Surveys continue to perform well after the repairs made during SM4. All aspects of the WFC performance were checked during the SMOV period. The replacement electronics have given the WFC detectors new characteristics, as explained inside...
(Linda Smith, David Golimowski, and Norman Grogin)
Since its repair during SM4, the Space Telescope Imaging Spectrograph has resumed its role as an important part of Hubble’s instrument complement; however, there are changes in the detector background for STIS’s Charge Coupled Device and near-ultraviolet Multi-Anode Microchannel Array detectors. (Charles Proffitt)
While development of the James Webb Space Telescope is in full swing, important components of the observatory—and the mission itself—recently passed major reviews.
All optical elements of Webb's optical telescope element are in advanced stages of production. Once assembled and launched, an elaborate process of wavefront sensing and control will be used to co-phase the primary mirror segments and achieve diffraction-limited performance at a wavelength of 2 microns.
(Roeland P. van der Marel)
Webb's very versatile Mid-Infrared Instrument will offer imaging through various filters, coronagraphs, and low- and medium resolution spectroscopy. MIRI is taking shape; its assembly and thermal-vacuum testing will take place this year.
(Scott Friedman and Gillian Wright)
The text of a talk given at the Institute on March 8, 2010, on the occasion of the 20th anniversary of the start of the Hubble Fellowship Program.
"Stellar Populations in the Cosmological Context” was inspired by the enormous progress over the last two decades in the detailed study of nearby, resolved stellar populations, and the discovery and the characterization of high-redshift galaxies. Furthermore, the new panchromatic capabilities of Hubble’s Wide Field Camera 3 are now enabling a new leap forward in exciting research.
(Jason Kalirai and Massimo Robberto)
Communicating the wonder of exploration and the excitement of discovery are goals of the Hubble Space Telescope Science Year in Review. Thousands of papers have been written on Hubble results, but the Science Year in Review distills the top annual discoveries into laymen’s terms—complete with full-color, top-flight graphics and illustrations, and a multitude of amazing Hubble images.
The gossamer-like filaments of NGC 1275 have existed for more than 100 million years. But why have they not heated up, dispersed, and evaporated by now, or simply collapsed under their own gravity?
By means of gravitational lensing, recent Hubble observations of Abell 901/902 have helped to "illuminate" invisible dark matter and the large cosmic "web" in which it entangles "normal" matter.
(Meghan Gray and Catherine Heymans)