Two studies shed additional light on a murky question: How did the cosmic fog that enveloped the universe in its early days dissipate?
There should be billions of habitable, rocky planets around the faint red stars of our Milky Way galaxy, a new study suggests. Though these alien planets are difficult to detect, and only a few have been discovered so far, they should be ubiquitous, scientists say. And some of them could be good candidates to host…
Dominican University of California English major reflects on her own cosmic journey from literature to science. Dominican’s first year experience exposes all students to Big History. She now works to help coordinate Dominican’s annual summer institute, now in its fourth year.
Images sent back from NASA’s Mars rover Curiosity on Wednesday confirmed that the precious sample is being held by the rover’s scoop, and will soon be delivered to two miniature chemical labs to undergo an unprecedented analysis. (Related: “Mars Rover Curiosity Completes First Full Drill.”) To the delight of the scientists, the rock powder has…
Dark matter is slowly running out of places to hide. Two new looks at the gamma-ray sky suggest that if the mysterious matter is a particle, it is heavier than 40 gigaelectronvolts, about 44 times the mass of a proton. Author Metanexus Editors
It’s become a sport of sorts, predicting the low point of Arctic sea ice each year. Expert scientists with decades of experience do it but so do enthusiasts, whose guesses are gamely included in a monthly predictions roundup collected by Sea Ice Outlook, an effort supported by the U.S. government. When averaged, the predictions have…
Astronomers have for the first time observed a nova-producing system turn into a supernova, a finding that indicates the universe has more than one way to create a nova. A normal Type Ia supernova is a rare event, occurring perhaps once or twice every century. The type of supernova observed by a team of astronomers…