# Grote Reber

> American pioneer of radio astronomy (1911–2002)

**Wikidata**: [Q380212](https://www.wikidata.org/wiki/Q380212)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Grote_Reber)  
**Source**: https://4ort.xyz/entity/grote-reber

## Summary
Grote Reber (1911–2002) was an American physicist, astronomer, and engineer who pioneered the field of radio astronomy. He is best known for building the first dedicated radio telescope in 1937, which allowed him to create the first radio frequency sky maps, laying the foundation for modern radio astronomy.

## Biography
- **Born**: December 22, 1911
- **Died**: December 20, 2002
- **Nationality**: American (United States)
- **Education**: Illinois Institute of Technology, University of Tasmania
- **Known for**: Building the first radio telescope and mapping cosmic radio waves
- **Employer(s)**: Illinois Institute of Technology (affiliation)
- **Field(s)**: Physics, astronomy, engineering, radio astronomy

## Contributions
Grote Reber constructed the first parabolic radio telescope in his backyard in Wheaton, Illinois, in 1937. This 9-meter dish allowed him to systematically scan the sky at radio frequencies, producing the first detailed maps of cosmic radio emissions. His work confirmed Karl Jansky’s earlier discovery of extraterrestrial radio waves and expanded the field into a full-fledged scientific discipline. Reber’s observations, published in the *Astrophysical Journal* and other journals, revealed that radio emissions from the Milky Way were strongest at certain frequencies, providing early evidence for synchrotron radiation. His data also contributed to the understanding of galactic structure and cosmic ray interactions.

## FAQs
**What did Grote Reber invent?**
Grote Reber built the first dedicated radio telescope, a 9-meter parabolic dish, which he used to map radio emissions from the sky. This instrument was the first of its kind and became the prototype for future radio telescopes.

**Where did Grote Reber conduct his research?**
Reber initially conducted his research in Wheaton, Illinois, using a homemade radio telescope in his backyard. Later in his career, he moved to Tasmania, Australia, to continue his work in radio astronomy.

**What awards did Grote Reber receive?**
Reber received several prestigious awards, including the Bruce Medal (1962), the Henry Norris Russell Lectureship, the Elliott Cresson Medal, and the Jackson-Gwilt Medal. He was also inducted into the National Inventors Hall of Fame.

**What was Grote Reber’s educational background?**
Reber studied at the Illinois Institute of Technology and later affiliated with the University of Tasmania. His work was largely self-directed, reflecting his background as both an engineer and an amateur radio operator.

**How did Grote Reber’s work influence modern astronomy?**
Reber’s pioneering radio maps of the sky provided the first systematic evidence of cosmic radio sources, leading to the development of radio astronomy as a major branch of astronomy. His work influenced later discoveries, including quasars and pulsars.

## Why They Matter
Grote Reber’s work transformed astronomy by extending observations beyond visible light into the radio spectrum. His maps of cosmic radio emissions demonstrated that the universe could be studied in entirely new ways, leading to the discovery of phenomena like pulsars, quasars, and the cosmic microwave background. Without his foundational contributions, modern radio astronomy—and much of our understanding of the universe—would not exist. His legacy is evident in every radio telescope built since, from the Arecibo Observatory to the Square Kilometre Array.

## Notable For
- **First radio telescope**: Built the first parabolic dish radio telescope in 1937.
- **First radio sky maps**: Produced the first systematic maps of cosmic radio emissions.
- **Pioneer of radio astronomy**: Established radio astronomy as a scientific discipline.
- **Award-winning scientist**: Recipient of the Bruce Medal, Henry Norris Russell Lectureship, Elliott Cresson Medal, and Jackson-Gwilt Medal.
- **Inducted into the National Inventors Hall of Fame**: Recognized for his groundbreaking contributions to science.
- **Affiliations**: Worked with the Illinois Institute of Technology and the University of Tasmania.
- **Amateur radio operator**: Combined his engineering skills with astronomical research.

## Body

### Early Life and Education
Grote Reber was born on December 22, 1911, in the United States. He developed an early interest in radio technology, becoming an amateur radio operator. He studied at the Illinois Institute of Technology, where he gained expertise in engineering and physics. His background in radio communications proved instrumental in his later astronomical work.

### Career and Research
Reber’s career in radio astronomy began in the 1930s when he learned of Karl Jansky’s discovery of radio waves from the Milky Way. Inspired, he constructed a 9-meter parabolic radio telescope in his backyard in Wheaton, Illinois, completing it in 1937. This telescope allowed him to scan the sky at various radio frequencies, producing the first detailed maps of cosmic radio emissions.

His observations, published in the *Astrophysical Journal* and other scientific journals, revealed that radio emissions were strongest at certain frequencies, suggesting synchrotron radiation from cosmic rays. His work confirmed and expanded upon Jansky’s findings, establishing radio astronomy as a legitimate field of study.

### Later Work and Legacy
In the 1950s, Reber moved to Tasmania, Australia, to continue his research in a location with minimal radio interference. He remained active in the field, contributing to the understanding of galactic structure and cosmic phenomena. His pioneering work earned him numerous awards, including the Bruce Medal (1962), the Henry Norris Russell Lectureship, and induction into the National Inventors Hall of Fame.

### Awards and Recognition
- **Bruce Medal (1962)**: Awarded by the Astronomical Society of the Pacific for lifetime contributions to astronomy.
- **Henry Norris Russell Lectureship**: Recognized his outstanding research in astronomy.
- **Elliott Cresson Medal**: Awarded by the Franklin Institute for scientific achievements.
- **Jackson-Gwilt Medal**: Given by the Royal Astronomical Society for contributions to astronomy.
- **National Inventors Hall of Fame**: Inducted for his invention of the radio telescope.

### Influence on Modern Astronomy
Reber’s work laid the groundwork for modern radio astronomy, influencing the design of later telescopes and the discovery of new cosmic phenomena. His maps of the radio sky provided the first evidence of non-thermal radiation from the Milky Way, leading to the identification of supernova remnants, pulsars, and quasars. His legacy continues in contemporary projects like the Square Kilometre Array, which builds on his early innovations.

### Personal Life and Death
Reber remained dedicated to his work throughout his life, combining his engineering skills with a passion for astronomy. He died on December 20, 2002, leaving behind a legacy as the father of radio astronomy. His contributions are commemorated in the Grote Reber Medal, awarded for outstanding achievements in the field.

## References

1. [Source](https://www.fi.edu/en/laureates/grote-reber)
2. [Source](https://phys-astro.sonoma.edu/brucemedalists/grote-reber)
3. Virtual International Authority File
4. NNDB
5. Gran Enciclopèdia Catalana
6. Croatian Encyclopedia
7. Freebase Data Dumps. 2013
8. Biographical Encyclopedia of Astronomers