NASA: “What’s Hidden Beneath Europa’s Icy Surface?” (Today’s Most Popular)

 

 

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Four hundred years ago, the astronomer Galileo's discovery of Jupiter's four large moons forever changed humanity's view of the universe, helping to bring about the understanding that Earth was not the center of all motion. Today one of these Galilean moons could again revolutionize science and our sense of place, for hidden beneath Europa's icy surface is perhaps the most promising place to look for present-day environments that are suitable for life.

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The Anthropocene Epoch –The Impact of Earth’s Growing ‘Technosphere’

 

 

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There is growing interaction of the biosphere with the 'technosphere' – a concept pioneered by Peter Haff of Duke University – the sum total of all human-made manufactured machines and objects, and the systems that control them. In total, an international team of scientists team suggests that these changes represent a planetary transformation as fundamental as the one that saw the evolution of the photosynthetic microbes which oxygenated the planet 2.4 billion years ago, or that saw the transition from a microbial Earth to one dominated by multicellular organisms half a billion years ago.

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Kepler Mission –“Discovers 33 Stars Over 11 Billion Years Old With Earth-Like Planets”

 

 

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One of the biggest questions in astrophysics is: does life exists beyond earth? To even begin answering this, we need to know how many planets like ours exist out there, and when they formed. However determining ages of stars (and thus of their orbiting planets) is extremely difficult; precise ages are only available for a handful of host stars thanks to asteroseismic observations made with the Kepler satellite.

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Big-Bang Theory: “The Universe has Slowed Down and Speeded Up Seven Times”

 

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The universe has slowed down and speeded up, not just once, but 7 times in the last 13.8 billion years, on average emulating dark matter in the process. “The ringing has been decaying and is now very small – much like striking a crystal glass and hearing it ring down," say physicists Lawrence Mead and Harry Ringermacher at The University of Southern Mississippi, who have discovered that the universe might not only be expanding, but also oscillating or “ringing” at the same time. 

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Quantum Origins of the Universe –“Seeded the Early Galaxies and Clusters ” (Weekend Feature)

 

 

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"The Planck data confirm the basic predictions that quantum fluctuations are at the origin of all structures in the Universe," said Jean-Loup Puget, Principal Investigator for the HFI-instrument on the Planck satellite. Viatcheslav Mukhanov, a cosmologist at Ludwig-Maximilians-Universitaet (LMU) in Munich, an expert in the field of Theoretical Cosmology., who first published his model in 1981 and joined the Physics Faculty at LMU in 1997, said: "I couldn't hope for a better verification of my theory."

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