Latest Issue of Science News


News

Stars ablaze in other skies

Calculations find that many universes could sustain stars

Fred Adams sees stars in the most unlikely places.

His calculations suggest that, contrary to some previous claims, stars are not only common in our cosmos but are also ablaze in myriad other universes, where the laws of physics may be drastically different. Even in a cosmos where balls of gas and dust never collapse and ignite to make conventional stars, radiation produced by black holes and clumps of invisible material called dark matter may play the same role as stars, says Adams, a theorist at the University of Michigan in Ann Arbor.

“In fact, all universes can support the existence of stars, provided that the definition of star is interpreted broadly,” notes Adams in the August online Journal of Cosmology and Astroparticle Physics.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

X
This article is available only to subscribing members. Join SSP today or Log in.