Ron Cowen's Articles
- NewsJets of hot gas heat the sun’s nebulous outer atmosphere to millions of degrees, well above the temperature on the surface, a new study suggests.
- NewsMeteorite analysis suggests it may be possible to make amino acids in the absence of water, boosting the chances of finding life elsewhere in the universe.
- NewsCosmological patterns that were recently put forth as evidence for a pre–Big Bang universe are easily explained by current theory, critics say.
- NewsProtons buffeted by stellar winds in the Eta Carinae star system are accelerated to energies comparable to the maximum power of the world’s biggest particle smasher.
- NewsShort-lived gamma-ray flares recently recorded from the Crab nebula supernova remnant, known for its steady emissions, are perplexing researchers and forcing them to consider new models for particle acceleration.
- NewsNew observations suggest that the Milky Way's central black hole rotates slowly or not at all, reinforcing its image as a gentle gravitational giant.
- NewsThe discoverers of a fourth body orbiting a nearby star say its origins pose a challenge to existing theory, but some disagree.
- NewsAstronomers find such an abundance of red dwarfs in eight nearby galaxies that they suggest the stellar population of the universe may be three times current estimates.
- NewsCircular patterns in the universe's pervasive background radiation suggest that the Big Bang was not the beginning of the universe, but only the latest of its incarnations.