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Ken Croswell

Biography:

Ken Croswell is an astronomer in Berkeley, California, who earned his doctorate in astronomy from Harvard University. He is the author of several critically acclaimed books on astronomy, including the very large, very beautiful book "Magnificent Universe."

Past Shows:

ETs & Cryptozoology

Forensic artist and investigator Bill McDonald updated us on several of his projects including the biology of the Loch Ness monster, and the interface between UFO occupants and their spacecraft. Last hour guest, astronomer Ken Croswell talked about the incredible diversity of stars. ... More »

Host: George Noory

Mars: Past & Present

Monday's main guest, astronomer and author, Ken Croswell (kencroswell.com) joined guest host Barbara Simpson (email) for a discussion about Mars. Because the red planet's ancient geologic history is better preserved than Earth's, Mars could offer significant clues as to how life evolved on our planet, Croswell said. In the past, Mars underwent "an enormous and catastrophic transition," including the loss of its atmosphere, he said, adding that Mars' smaller diameter may have contributed to its fate. Interestingly, he said that Mars' proximity to Jupiter probably prevented it from growing larger when the planets were first forming, as the larger body attracted more matter to it.Discussing Valles Marineris, a 2500 mile long canyon on Mars, Croswell said its location lines up near where a "canal" was once detected in earlier decades. Phobos and Deimos, the two Martian moons, could serve as "natural space stations," he suggested, for missions to Mars and further out in the solar sy ... More »

Host:

The Vast Universe

Due to technical difficulties, Barbara's program with astronomer Ken Croswell aired instead of her interview with Thomas Elias which will be rescheduled. Croswell, an astronomer and author based in Berkeley, CA, has written such books as Magnificent Universe. ... More »

Host: Barbara Simpson

The Vast Universe

Ken Croswell was Barbara's guest on Saturday night. An astronomer and author based in Berkeley, CA, he's written such books as Magnificent Universe. ... More »

Host: Barbara Simpson

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