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It is widely held that the first step in forming gas-giant planets, such as Jupiter and Saturn, was the production of solid cores each with a mass roughly ten times that of the Earth. Getting the cores to form before … Continue reading
Yearly Archives: 2015
ESA’s XMM-Newton X-ray observatory has revealed three massive filaments of hot gas flowing towards a cluster of galaxies, uncovering a portion of the cosmic skeleton that pervades the entire Universe. Source: Cosmic filaments exposed near huge cluster … Continue reading
Compelling new evidence supports the hypothesis that the Chicxulub asteroid off the coast of the Yucatan Peninsula in Mexico 66 million years ago ignited volcanoes around the globe, most catastrophically in India, and that, together, these two planet-wide catastrophes caused … Continue reading
The European Space Agency (ESA) announced today that its Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its formation. “We … Continue reading
The Hadza, or Hadzabe are an indigenous ethnic group in north-central Tanzania, living around Lake Eyasi in the central Rift Valley and in the neighbouring Serengeti Plateau. The Hadza number just under 1,000. Some 300–400 Hadza live as hunter-gatherers, much … Continue reading
Charting the slow death of the universeDate:August 10, 2015Source:European Southern Observatory – ESOSummary:Astronomers studying more than 200,000 galaxies have measured the energy generated within a large portion of space more precisely than ever before. This represents the most comprehensive assessment … Continue reading
Wandering Jupiter accounts for our unusual solar systemScientists say Jupiter swept clear the inner solar system, resulting in the formation of a planetary system unlike any other astronomers have yet found Source: Wandering Jupiter accounts for our unusual solar system … Continue reading
After 15 years of measurement and another eight years of scrutinizing and calculation, the particle physics collaborations H1 and ZEUS have published the most precise results about the innermost structure and behaviour of the proton. The two experiments which took … Continue reading
Two independent teams have found compounds including nitrogen and carbon dioxide on Comet 67P, which can form sugars and amino acids. Source: Building blocks of life found among organic compounds on Comet 67P – what Philae discoveries mean … Continue reading
“Most people look at a cliff and just see a pile of rocks. But when I look at a cliff I see millions of years of geological time.” says Zoe Shipton, Professor of Geology at Strathclyde University. She explains what … Continue reading