From gummies to drops to tablets, our dietitians evaluated the best vitamins for kids. Their top picks come ... adequate amounts of vitamin D, the American Academy of Pediatrics (AAP) recommends ...
A study of more than 26,000 white dwarf stars has confirmed a long-predicted but elusive effect in these ultra-dense, dying stars: Hotter white dwarfs are slightly puffier than cooler ones, even when ...