A spinning neutron star with a magnetic field on the order of one trillion Gauss. This magnetic field accelerates electrically charged particles along the magnetic poles, forming a beam of energy that shoots into space from the poles. If the beam shines toward Earth, astronomers see a flickering beacon. The most famous pulsar, the Crab Nebula, pulses 30 times a second.

Radio Programs

Crab Nebula A crab scuttles across the sky Monday, December 14, 2015
Black Widow Pulsars Celestial creepy-crawlies Thursday, April 10, 2014
Vulpecula The fox and goose in the night sky Monday, September 23, 2013
Pulsar Tales Dead stars that won’t shut up Tuesday, August 20, 2013
Guitar Nebula Strumming a few astronomical notes Saturday, March 16, 2013
Pulsar Planets Reborn from a violent demise Tuesday, March 12, 2013
Wobbly Clocks Listening for cosmic “ripples” Friday, May 11, 2012
Geminga Giving birth to a “dead” star Sunday, February 12, 2012
Pulsar Planets Planets around a dead star Sunday, January 8, 2012
Pulsars The steady beat of dead stars Saturday, January 7, 2012

Featured Images

Black-widow pulsar
Doomed Mate Thursday, April 10, 2014
Artist's concept of the pulsar and planets in the system PSR B1257+12
Second-Chance Planets Sunday, January 8, 2012


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