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It started with a boom and ended with a touchdown: Blue Origin, the space company founded by Amazon billionaire Jeff Bezos, has sent a craft past the edge of space and then landed its rocket safely – and vertically — in Texas.

Every year before influenza itself arrives to circulate, misinformation and misconceptions about the flu vaccine begin circulating. Some of these contain a grain of truth but end up distorted, like a whispered secret in the Telephone game.

But if you're looking for an excuse not to get the flu vaccine, last year's numbers of its effectiveness would seem a convincing argument on their own. By all measures, last season's flu vaccine flopped, clocking in at about 23 percent effectiveness in preventing lab-confirmed influenza infections.

A 15-year-old boy died of Ebola in Liberia on Monday night, the first person in the country to perish from the disease since July, health officials say.

For a child with attention deficit hyperactivity disorder, meeting the daily expectations of home and school life can be a struggle that extends to bedtime. The stimulant medications commonly used to treat ADHD can cause difficulty falling and staying asleep, a study finds. And that can make the next day that much harder.