LTO Public Star Night – Feb 16, 2024 – Dr. John Bally

The Little Thompson Observatory

      850 Spartan Ave. Berthoud, CO 80513  

           Bringing science and math down to earth!


        Public Star Night – Friday, January 19, 2024

           Little Thompson Observatory

                    Doors Open:  7:00 | Guest Speaker:  7:30-8:30 | Observing at LTO: 8:30-10:00



State of Astronomy in the Multi-Wavelength, Multi-Messenger Era

A special presentation by

Dr. John Bally

 New telescopes such as Atacama Large Millimeter Array in Chile and the James Webb Space Telescope in space are providing spectacular new views of the cosmos.  Facilities on the ground have also been opening up new windows on the Universe using gravitational waves and the ghostly particles known as neutrinos. 

Dr. Bally will discuss some of the remarkable developments emerging from our new astronomical facilities on the ground and in space.   Starting with one of the most familiar regions of the sky, Orion, he will show how the scene changes as we scroll through the electromagnetic spectrum.   Our multi-wavelength view reveals new phenomena in the birth environment of stars and planets, how stars impact the evolution of the interstellar medium and the galaxy.    But major mysteries remain.  What is the nature of “dark matter”?  What is “dark energy” which causes the accelerated expansion of the cosmos?  Do we live in a multiverse?

John Bally
Professor Emeritus
Department of Astrophysical and Planetary Sciences Center for Astrophysics and Space Astronomy University of Colorado, Boulder, USA

John Bally was born in Hungary and emigrated to the United States when he was 9 years old. He did his undergraduate studies at the University of California at Berkeley and obtained his PhD at the University of Massachusetts at Amherst, earning his PhD in millimeter-wave radio astronomy in 1980.

He joined AT&T Bell Laboratories for 11 years as a Member of Technical Staff, working in the Radio Physics Research Department at Crawford Hill in Holmdel NJ in the group that discovered the Cosmic Microwave Background. He studied interstellar molecular clouds, the outflows and jets produced by forming stars, built sensitive mm-wavelength receivers, and worked on high-bandwidth, free-space optical communications, and atmospheric propagation characteristics. He participated in several expeditions to the South Pole in Antarctica to help set-up the first permanent astronomical observatory on that continent. His work helped to characterize the “astro-climate” at the Pole.

Since 1991, he has been a professor of astrophysics in the Department of Astrophysical and Planetary Sciences at the University of Colorado, Boulder. He uses many of the world’s major observatories such as the Hubble, the facilities of the National Optical Astronomy Observatories, and the Atacama Large Millimeter Array (ALMA) which is the most ambitious ground-based telescope ever built.

His researches the formation of stars and planetary systems, and the dense, dusty, gas clouds currently forming clusters of stars. He studies the extreme conditions in the Central Molecular Zone of the Milky Way which hosts a super-massive black hole. He studies collimated jets and shocks powered by accreting young stars and the feedback mechanisms in the self-regulation of star formation which drives the “Galactic ecology” – the cycling of atoms from the interstellar medium into stars, and from stars back into the interstellar medium. Recently, he has concentrated on massive stars, investigating their violent birth and demise. He is investigating explosive outflows formed by stellar collisions in dense clusters such as the event that occurred behind the Orion Nebula ~550 years ago (that’s when the signal would have reached Earth). He worked on the study of infrared transients in the Milky Way and nearby galaxies.

He has re-kindled his interests in cosmology and is exploring the hypothesis of “cosmic natural selection” in which black holes produce new universes. Recently, he has been investigating the limits placed on various types of dark matter.

John Bally is an avid skier, and owns a home in Breckenridge, CO where he operates a small observatory used to take deep wide-field images. The observatory was recently upgraded and hosts a PlaneWave CDK20 20” telescope and a Celestron RASA11 astrograph on a PlaneWave L-500 mount.

Following the talk by Dr. Bally, the observatory will be open for public viewing through our telescopes, weather permitting.

For more information, please visit the LTO web site at

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