广东加力支持消费品以旧换新 广州市本级实施方案9月1日起分批实行 - 广州市人民政府



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Exoplanets may be hiding behind the 'Neptunian ridge' - Space.com
Massive blue hole discovered in ocean depths : Scientists stunned by mysterious underwater formation - The Daily Galaxy --Great Discoveries Channel

A record of the Earth’s temperature covering half a billion years - Ars Technica
Recharging mitochondria—nanoflowers offer a new way to simulate energy production to improve aging ailments - Phys.org