John J. Kavelaars is a Canadian astrophysicist known for his work in the fields of astronomy and astrophysics. He has made significant contributions to our understanding of various astronomical phenomena and has been involved in research related to cosmic rays, galaxy clusters, and dark matter, among other topics. Kavelaars is also associated with institutions like the National Research Council of Canada.

Jeremy S. Heyl is an astrophysicist known for his research in various areas of astrophysics, including topics such as neutron stars, black holes, and other astronomical phenomena. He has contributed to the understanding of cosmic objects and their behaviors through theoretical modeling and analysis.

Miguel Itzigsohn is a notable figure best known for his contributions to the field of civil engineering. He has made significant impacts in various projects and research initiatives related to engineering practices and methodologies. For detailed information regarding his specific contributions or current projects, additional context may be needed to provide a more comprehensive overview.

Peter Quinn is an Australian astronomer known for his contributions to astrophysics and cosmology. He has been involved in significant research related to the evolution of galaxies, the cosmic microwave background, and the large-scale structure of the universe. Quinn is also recognized for his leadership roles in various astronomical projects and institutions, including his work with the Australian National University and contributions to international collaborations in the field of astronomy.

Russell Ormond Redman is not a widely recognized name in historical or contemporary contexts, and it seems there might be limited publicly available information about him. It's possible he could be a figure known in more niche areas, such as local history, academia, or specific professional fields. If you can provide more context or specify the domain in which he is relevant (e.g.

Astronomy has been practiced by many cultures and nations throughout history. Here's a breakdown of some notable astronomers categorized by their nationality and the century in which they made significant contributions: ### Ancient and Classical Periods - **Babylonians (circa 2nd millennium BCE)** - Developed early astronomical records and the zodiac.

Australian astronomers refer to individuals in Australia who study astronomy and contribute to the field through research, observation, and education. Australia has a rich history of astronomical research and has produced many notable astronomers who have made significant contributions to our understanding of the universe. The country is also home to several key astronomical institutions and observatories, such as: 1. **Australia Telescope National Facility (ATNF)**: Operated by CSIRO, it includes several radio telescopes used for various astronomical research.

Astronomers from Georgia, a country located at the intersection of Eastern Europe and Western Asia, have made significant contributions to the field of astronomy over the years. Georgia has a rich cultural and scientific heritage, and its astronomers have been involved in various research activities, especially following the establishment of academic institutions in the 20th century.

"Belgian astronomers" could refer to several things, including notable astronomers from Belgium, contributions made by Belgian scientists to the field of astronomy, or institutions in Belgium that are involved in astronomical research.

A Supermoon refers to a full moon that coincides with the moon's closest approach to Earth in its elliptical orbit, a point known as perigee. This proximity makes the moon appear larger and brighter in the sky than usual. Although the difference in size might not be dramatically noticeable to the casual observer, it can be quite striking, particularly when the moon is near the horizon.

"Dutch astronomers" could refer to several notable figures in the field of astronomy from the Netherlands, as well as the contributions of Dutch scientists to the field. Here are a few key highlights: 1. **Tycho Brahe (1546-1601)**: Though he was Danish, he spent time in the Netherlands and had a significant influence on astronomy in the region. His meticulous observations laid the groundwork for later astronomers.

South Korean astronomers are scientists and researchers from South Korea who specialize in the study of astronomy, which involves the observation and analysis of celestial objects and phenomena in the universe. South Korea has a growing astronomical community, supported by various institutions and observatories, including universities, research centers, and national observatories.

"Spanish astronomers" refers to astronomers from Spain or those of Spanish descent who have made significant contributions to the field of astronomy. Spain has a rich history in astronomical research and education, with contributions spanning several centuries. Notable Spanish astronomers include: 1. **Nicolás Copernicus**: Though primarily associated with Poland, his work influenced Spanish astronomers, and his theories were further explored by them. 2. **Joaquín V.

A hexadecahedron is a type of polyhedron that has 16 faces. The term "hexadeca-" comes from the Greek roots "hexa," meaning six, and "deca," meaning ten, thus combining to refer to a total of sixteen. There are various forms of hexadecahedra, but one of the more common types is the regular hexadecahedron, which can be constructed as a convex polyhedron made up of regular polygons.

The great stellapentakis dodecahedron is a convex polyhedron in the category of stellated polyhedra. It is one of the many tessellated shapes in the field of geometry and is characterized by a specific arrangement of its faces, vertices, and edges. To break it down: 1. **Dodecahedron**: This is a polyhedron with 12 flat faces, each of which is a regular pentagon.

The Great Truncated Cuboctahedron is a unique type of Archimedean solid, which is a class of polyhedra characterized by having regular polygons as their faces and being vertex-transitive. Specifically, the Great Truncated Cuboctahedron is derived from the cuboctahedron by truncating its vertices and further truncating the resulting edges.

A gyroelongated pentagonal cupola is a type of Archimedean solid, which can be described as a polyhedron with specific characteristics. It combines two geometric shapes: a pentagonal cupola and a prism. Specifically, a gyroelongated pentagonal cupola is formed by taking a pentagonal cupola (which itself is a blending of a pentagonal pyramid and a pentagonal prism) and elongating it.

The gyroelongated square bipyramid is a type of polyhedron that belongs to the category of Archimedean solids. Specifically, it is derived from the elongated square bipyramid, which is a bipyramid with a square base elongated by the addition of two additional square pyramidal sections. Here are some key characteristics of the gyroelongated square bipyramid: 1. **Faces**: The gyroelongated square bipyramid consists of 8 triangular faces and 4 square faces.

A hendecagonal prism is a three-dimensional geometric shape that has two parallel faces that are hendecagons (11-sided polygons) and 11 rectangular lateral faces connecting the corresponding sides of the two hendecagons. In more detail: - **Hendecagon**: This is a polygon with 11 sides and 11 angles. Each interior angle of a regular hendecagon (where all sides and angles are equal) measures approximately 147.27 degrees.

An octagonal antiprism is a type of polyhedron that belongs to the category of antiprisms. Specifically, it is characterized by two parallel octagonal bases that are connected by a band of triangles. Here are some key features of the octagonal antiprism: 1. **Faces**: It has a total of 18 faces, consisting of 2 octagonal bases and 16 triangular lateral faces.