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	Science News Headlines - Yahoo! News
	(Sponsor this newsletter) NASA: Global warming is now changing how Earth wobbles WASHINGTON (AP) — Global warming is shifting the way the Earth wobbles on its polar axis, a new NASA study finds. Read More » No, Planet Nine Won't Kill Us All Don't believe the doomsday hype about the putative Planet Nine. Yesterday (April 7), the New York Post published a video claiming that Planet Nine — a hypothesized world in the solar system's far outer reaches — could send asteroids and comets hurtling into Earth soon, with potentially devastating consequences. "A newly discovered planet could destroy Earth as soon as this month," the New York Post said yesterday via its Twitter account, @nypost, by way of advertising the new video. Read More » U.S. needs up to 18 more Russian rocket engines: Pentagon By Phil Stewart WASHINGTON (Reuters) - The Pentagon will need to buy up to 18 more Russian-built RD-180 engines to power rockets carrying U.S. military satellites into space over the next six years or so, Deputy Defense Secretary Robert Work said in an interview on Friday. Congress banned use of the Russian RD-180 rocket engines for military use after 2019, following Russia's annexation of the Crimea region of Ukraine in 2014. Work said the United States needed to ensure there were at least "two affordable and reliable means into space." He added the RD-180 would be needed only during what he described as a transition period of new domestic rocket engine development. Read More » SpaceX rocket booster makes breakthrough landing at sea By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - A SpaceX Falcon 9 rocket blasted off from Florida on a NASA cargo run to the International Space Station on Friday, and its reusable main-stage booster landed on an ocean platform minutes later in a dramatic spaceflight first. The successful autonomous touchdown of the booster at sea marked another milestone for billionaire entrepreneur Elon Musk and his privately owned Space Exploration Technologies in the quest to develop a cheap, reusable rocket, expanding his edge in the burgeoning commercial space launch industry. Read More »
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