Skip to main content

Not just about star-gazing: Astronomy changes our lives


This image of the Small Magellanic Cloud located 163,000 light-years from Earth, was rendered from data acquired by Ryan Hannahoe and processed by Robert Gendler, from equipment at the Fair Dinkum Skies Observatory in Australia -- an example of both the dazzling images we now have from space and the collaboration that characterizes space exploration and astronomy.

Through the capabilities of optics and photonics, astronomical telescopes and instrumentation systems have vastly increased humankind’s knowledge about the physical composition and history of the universe -- including our own planet and its natural phenomena.

And, again thanks to optics and photonics, these mind-bending data and dazzling images are not the purview of only astronomers and physicists. Images in particular -- arriving at Earth, as Nobel Laureate Saul Perlmutter observed in a recent talk, on light that left its origin in the cosmos in some cases before our solar system was formed-- are rendered on desktops and television screens everywhere, bringing the furthest reaches of space into homes, classrooms and offices.

Of course, new information prompts new questions.

Theorists such as Stephen Hawking pondering a Theory of Everything to explain some of those unanswered questions look for clues in the results of past and present missions such as the Hubble Space Telescope and the Large Hadron Collider (LHC).

Besides scientific knowledge, there are other very significant results of space exploration.

International missions bring nations together via collaboration. The LHC, James Webb Space Telescope and Extremely Large Telescope project are examples of major endeavors that align multiple countries and regions who otherwise compete in a number of ways. 

And spin-off technologies transferred from astronomical missions and space travel abound in our everyday lives.

For example, optical systems designers Roger Angel (University of Arizona, College of Optical Sciences) has recently turned his attention from space telescopes to efficient solar-energy systems -- using technology originally built for studying planets to directly improve the green-energy options for people on our planet.

A long list of products and innovations ranging from invisible braces and scratch-resistant eyeglass coatings, to digital cameras and medical imaging technologies, to satellite communications systems, the internet, and many more have been derived from inventions patented by NASA, the European Space Agency, and other agencies and organizations as a result of space exploration.

What’s next?

Leading astronomical instrumentation researchers and developers will meet in Amsterdam next month and reveal future directions for projects now in play and in planning. You can get an idea of some of what they’ll talk about in a recent special section of the journal Optical Engineering on space telescopes. (Guest editors Mark Clampin [James Webb Space Telescope] and Kathryn Flanagan [Space Telescope Science Institute] are both participants in the Amsterdam meeting, SPIE Astronomical Telescopes and Instrumentation.)

Get out that telescope -- keep looking up!

Comments

Popular posts from this blog

Ten Ways to Celebrate the first International Day of Light

The first International Day of Light (IDL) is less than a month away. A global initiative highlighting the importance of light and light-based technologies, communities around the world are planning events celebrating IDL on 16 May. First Place Winner of the 2017 SPIE IDL Photo Contest SPIE will participate in outreach events local to our community in Bellingham, Washington, attend the inauguration in Paris, France, and host an IDL reception for our conference attendees at SPIE Optical Systems Design in Frankfurt, Germany taking place May 14-17. SPIE is also supporting local events in 13 different communities from the US to India, Canada to South Africa, who were awarded SPIE IDL Micro Grants to create activities that highlight the critical role light plays in our daily lives. Do you need some ideas on how to show your appreciation of light on the 16th? Here is our top ten list of ways you can celebrate IDL 2018: 1. Throw a Celebration:  Light up your party with light an

Cataract surgery: misnomer?

On left, the patient’s left eye has no cataract and all structures are visible. On right, retinal image from fundus camera confirms the presence of a cataract. (From Choi, Hjelmstad, Taibl, and Sayegh, SPIE Proc. 85671Y , 2013)   Article by guest blogger Roger S. Reiss , SPIE Fellow and recipient of the 2000 SPIE President's Award. Reiss was the original Ad Hoc Chair of SPIE Optomechanical Working Group. He manages the LinkedIn Group “ Photonic Engineering and Photonic Instruments .” The human eye and its interface with the human brain fit the definition of an "instrument system."   The human eye by itself is also an instrument by definition. After the invention of the microscope and the telescope, the human eye was the first and only detector for hundreds of years, only to be supplemented and in most cases supplanted by an electro-optical detector of various configurations. The evolution of the eye has been and still is a mystery.   In National Geogr

#FacesofPhotonics: NASA Intern Elaine Stewart

MIRROR, MIRROR: Elaine with the JWST at Goddard Space  Flight Center in Greenbelt, Maryland Meet Elaine Stewart: chemical engineering student, world-traveler, intern at NASA's Goddard Space Flight Center, and this week's SPIE Face of Photonics. Elaine is fascinated by space exploration and how optics impacts our ability to "study distant stars that have never been seen before." Her research has taken her around the world -- from Bochum, Germany, where she studied material science and engineering at Ruhr-Universität, to Houston, Texas, to work on the James Webb Space Telescope (JWST) while it was under cryogenic vacuum chamber testing, to Melbourne, Australia, where she studied biochemical and product engineering at the University of Melbourne in 2017. And, when she's not busy traversing the globe, she is focusing on graduating from the University of Delaware in 2019 with a Bachelor's in Chemical Engineering. Elaine makes a point of remaining an active