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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
Monthly Archives: December 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