Marcelo Gleiser Marcelo Gleiser is a contributor to the NPR blog 13.7: Cosmos & Culture.

Marcelo Gleiser

Blogger, 13.7: Cosmos & Culture

Marcelo Gleiser is a contributor to the NPR blog 13.7: Cosmos & Culture. He is the Appleton Professor of Natural Philosophy and a professor of physics and astronomy at Dartmouth College.

Gleiser is the author of the books The Prophet and the Astronomer (Norton & Company, 2003); The Dancing Universe: From Creation Myths to the Big Bang (Dartmouth, 2005); A Tear at the Edge of Creation (Free Press, 2010); and The Island of Knowledge (Basic Books, 2014). He is a frequent presence in TV documentaries and writes often for magazines, blogs and newspapers on various aspects of science and culture.

He has authored over 100 refereed articles, is a Fellow and General Councilor of the American Physical Society and a recipient of the Presidential Faculty Fellows Award from the White House and the National Science Foundation.

More from Marcelo Gleiser

[+] read more[-] less

Story Archive

David Reitze of the California Institute of Technology and the executive director of the Laser Interferometer Gravitational-Wave Observatory, or LIGO, speaks at the National Press Club in Washington on Oct. 16. He talks of one of the most violent events in the cosmos, the collision of neuron stars, that was witnessed completely for the first time in August. Susan Walsh/AP hide caption

toggle caption
Susan Walsh/AP

Einstein realized that if masses moved about, the deformations in space would also move about, propagating like waves, somewhat like what happens when you throw a rock on a pond. But, gravity being such a weak force, the effect is truly tiny and needs something very dramatic to create a signal we can detect here. This is exactly what was found by LIGO and the Nobel winners. traveler1116/Getty Images hide caption

toggle caption
traveler1116/Getty Images

This image of the Orion Nebula star-formation region was obtained by multiple exposures using the HAWK-I infrared camera on ESO's Very Large Telescope in Chile. H. Drass et al./ESO hide caption

toggle caption
H. Drass et al./ESO