Edward Belbruno
Encyclopedia
Edward Belbruno is a mathematician whose interests are in celestial mechanics
Celestial mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of celestial objects. The field applies principles of physics, historically classical mechanics, to astronomical objects such as stars and planets to produce ephemeris data. Orbital mechanics is a subfield which focuses on...

, dynamical systems, dynamical astronomy, and aerospace engineering.
Belbruno received his Associate Degree from Mitchell College
Mitchell College
For the North Carolina college formerly known as Mitchell College, see Mitchell Community College.Mitchell College is a liberal arts college located on the banks of the Thames River, in New London, Connecticut, USA...

, his Bachelor of Science degree in mathematics from New York University
New York University
New York University is a private, nonsectarian research university based in New York City. NYU's main campus is situated in the Greenwich Village section of Manhattan...

 and his PhD in mathematics from New York University’s Courant Institute in 1981, where his mentor was mathematician Jürgen Moser
Jürgen Moser
Jürgen Kurt Moser or Juergen Kurt Moser was a German-American mathematician.-Professional biography:...

.
He was employed by the Jet Propulsion Laboratory
Jet Propulsion Laboratory
Jet Propulsion Laboratory is a federally funded research and development center and NASA field center located in the San Gabriel Valley area of Los Angeles County, California, United States. The facility is headquartered in the city of Pasadena on the border of La Cañada Flintridge and Pasadena...

 from 1985 to 1990 as an orbital analyst on such missions as Galileo, Magellan, Cassini, Ulysses, Mars Observer
Mars Observer
The Mars Observer spacecraft, also known as the Mars Geoscience/Climatology Orbiter, was a 1,018-kilogram robotic space probe launched by NASA on September 25, 1992 to study the Martian surface, atmosphere, climate and magnetic field...

, and others.

During that time, he laid the foundations for the first systematic application of chaos theory
Chaos theory
Chaos theory is a field of study in mathematics, with applications in several disciplines including physics, economics, biology, and philosophy. Chaos theory studies the behavior of dynamical systems that are highly sensitive to initial conditions, an effect which is popularly referred to as the...

 to space flight originally called fuzzy boundary theory, which allows for the construction of very low energy paths for spacecraft.

In 1990 Belbruno applied his ideas for low energy transfer orbits to the Japanese lunar probe Hiten
Hiten
The Hiten Spacecraft , given the English name Celestial Maiden and known before launch as MUSES-A , part of the MUSES Program, was built by the Institute of Space and Astronautical Science of Japan and launched on January 24, 1990...

, which had been designed only for lunar swing-by and had suffered a failure of the Hagoromo lunar orbiter. The main Hiten probe lacked the fuel to enter lunar orbit using a conventional Hohmann transfer trajectory, but Belbruno was able to devise a ballistic capture trajectory that would put it in lunar orbit using only a negligible amount of fuel. The probe entered lunar orbit in 1991, the first time that Belbruno's ideas had been put to the test.

Belbruno had first proposed using a low-energy transfer orbit for a JPL probe in 1988. However, he faced a great deal of skepticism, and found himself in conflict with engineers. He'd also expected to make no progress on Hiten, but the Japanese proved receptive to his ideas and called ballistic capture an "amazing result." He left JPL in fall of 1990 and took a position at Pomona College.

Belbruno is president and founder of the company Innovative Orbital Design, Inc., based in Princeton, New Jersey
Princeton, New Jersey
Princeton is a community located in Mercer County, New Jersey, United States. It is best known as the location of Princeton University, which has been sited in the community since 1756...

 and holds patents on routes in space. He consulted on the rescue of the Asiasat-3 communications satellite for Hughes, although a different trajectory was ultimately used for the rescue.

Belbruno's books include Fly Me to the Moon and Capture Dynamics and Chaotic Motions in Celestial Mechanics. He is a consultant with the National Aeronautics and Space Administration, and has made appearances on NBC's Today Show.

He is also an oil painter and has had many international exhibitions of his works, including in Paris, Rome, Los Angeles, Washington DC, New York, Minneapolis, and a painting of his is in NASA’s executive collection in Washington, DC.

External links

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