Ken Croswell is an American

astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...

and writer. His first degree, from

Washington University in St. Louis Washington University in St. Louis (WashU) is a private research university in St. Louis, Missouri, United States. Founded in 1853 by a group of civic leaders and named for George Washington, the university spans 355 acres across its Danforth ...

, mixed science and wider interests,

majoring An academic major is the academic discipline to which an undergraduate student formally commits. A student who successfully completes all courses required for the major qualifies for an undergraduate degree. The word ''major'' (also called ''conce ...

physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...

and minoring in

English literature English literature is literature written in the English language from the English-speaking world. The English language has developed over more than 1,400 years. The earliest forms of English, a set of Anglo-Frisian languages, Anglo-Frisian d ...

. He also got a

PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...

astronomy Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest includ ...

from

Harvard University Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...

for studying the

Milky Way The Milky Way or Milky Way Galaxy is the galaxy that includes the Solar System, with the name describing the #Appearance, galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galax ...

halo HALO, halo, halos or haloes may refer to: Most common meanings * Halo (optical phenomenon) * Halo (religious iconography), a ring of light around the image of a head * ''Halo'' (franchise), a sci-fi video game series (2001–2021) Arts and en ...

. He is primarily known as a writer on astronomy and space topics. He has written regularly the ''

New Scientist ''New Scientist'' is a popular science magazine covering all aspects of science and technology. Based in London, it publishes weekly English-language editions in the United Kingdom, the United States and Australia. An editorially separate organ ...

'', ''

New York Times ''The New York Times'' (''NYT'') is an American daily newspaper based in New York City. ''The New York Times'' covers domestic, national, and international news, and publishes opinion pieces, investigative reports, and reviews. As one of ...

'' and various magazines in the popular science press. He is also the author of six books on astronomy, including ''The Alchemy of the Heavens'' and ''Planet Quest,'' and often reports on the radio program the

John Batchelor John Calvin Batchelor (born April 29, 1948) is an American author and the host of ''Eye on the World'' on the CBS Audio Network. His flagship station is WOR in New York City. The show is a hard-news-analysis radio program on current events, wo ...

Show.

Publications

Books

* *

Essays and reporting

* * *Scientific American often changes the title of a print article when it is published online. This article is titled "'Tadpole' Galaxies Offer Snapshots of the Milky Way’s Youth" online.

References

External links

* 20th-century American astronomers Living people Harvard Graduate School of Arts and Sciences alumni Scientific American people Scientists from California Washington University in St. Louis alumni Year of birth missing (living people) 21st-century American astronomers American science writers {{US-astronomer-stub