Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Hubble Telescope to Get Last Tuneup During International Year of Astronomy

02.01.2009
As the International Year of Astronomy dawns, the renowned Hubble Space Telescope is preparing for its final chapter, starting with the scheduled May 12 launch of the space shuttle Atlantis for NASA's fifth and final service mission to the telescope.

From troubled beginnings nearly 18 years ago, the Hubble Space Telescope has revolutionized astronomy and its stunning images have stirred the imaginations of people around the globe.

But as the International Year of Astronomy dawns, the renowned telescope is preparing for its final chapter, starting with the scheduled May 12 launch of the space shuttle Atlantis for NASA's fifth and final service mission to the telescope.

The repairs will provide Hubble with a future as bright, though perhaps not nearly as long, as its past, said Julianne Dalcanton, a University of Washington associate professor of astronomy who for nearly a decade has used the telescope for a major part of her research.

Dalcanton is the author of a review article in the Jan. 1 edition of Nature that recounts the storied history of Hubble and its many contributions to astronomy, most of which could not have been achieved by ground-based telescopes.

She attributes Hubble's success to the fact that it orbits nearly 350 miles above the Earth, far removed from the atmosphere and ambient light that limit the effectiveness of ground-based telescopes, and says the upcoming servicing mission will likely allow Hubble to add to its already rich legacy of scientific discovery.

That legacy includes helping to revolutionize astronomers' understanding of phenomena called black holes and their role in forming galaxies; more detailed observations of pulsating stars called Cepheids that enhanced the ability to judge the huge distances involved in stellar astronomy; and, most recently, producing an image, the first direct evidence, of a planet orbiting a star outside our solar system.

"One of the things Hubble has done is enhance the precision with which we can carry out research," Dalcanton said. "And the images produced have really spurred public interest. Those pictures are on screen savers throughout the world."

Hubble was launched on April 24, 1990, as a joint venture of NASA, the European Space Agency and the Space Telescope Science Institute. But the mission got off to a rocky start when it was discovered that an error had been made in fabricating the main mirror and its images were often fuzzy at best. The problem was corrected on NASA's first service mission in 1993 and the telescope has been wildly successful ever since.

One of the biggest successes, Dalcanton believes, is the democratization of Hubble's data. Astronomers place requests for the telescope to make specific observations, and if their project is accepted the data is returned to them to continue their work. But after one year, the data becomes available for anyone to use for any type of study.

"You don't have to be at Harvard or CalTech. You can be at a small Midwestern liberal arts teaching college and still have the opportunity to work with Hubble data," she said.

Asked what Hubble's greatest contribution is, Dalcanton was hard pressed to single one out from among the telescope's many accomplishments. She suspects the answers might vary greatly among astronomers who have different research goals.

The upcoming service mission, among other things, will replace gyroscopes and heat shields, upgrade instruments and add "some spiffy new capabilities that will allow us to make much deeper observations."

Dalcanton is pleased that she and others will have at least another five years or so to work with Hubble. The telescope eventually will be replaced by the James Webb Space Telescope, though the Webb telescope will focus more on the infrared part of the spectrum and won't produce the same type of images that Hubble has.

"It's a great telescope and I'm happy to be part of it," she said. "Like any tool, the more you use it the more you are able to get the best out of it."

For more information, contact Dalcanton at (206) 685-2155 or jd@astro.washington.edu.

Vince Stricherz | Newswise Science News
Further information:
http://www.astro.washington.edu

Further reports about: Astronomy Hubble Space Space Telescope Telescope black hole

More articles from Physics and Astronomy:

nachricht Significantly more productivity in USP lasers
06.12.2016 | Fraunhofer-Institut für Lasertechnik ILT

nachricht Shape matters when light meets atom
05.12.2016 | Centre for Quantum Technologies at the National University of Singapore

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Simple processing technique could cut cost of organic PV and wearable electronics

06.12.2016 | Materials Sciences

3-D printed kidney phantoms aid nuclear medicine dosing calibration

06.12.2016 | Medical Engineering

Robot on demand: Mobile machining of aircraft components with high precision

06.12.2016 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>