By 1845, one-third of U.K. residents lived in Ireland and nearly all of them relied on a single potato strain—a disaster ...

Read full article: This portrait may be the only one of England's 9-day queen painted during her lifetime Research by the charity English Heritage suggests it may have found a portrait of England ...

SAN FRANCISCO — New data suggest that lenacapavir delivered just once per year could be as effective for HIV prevention as the twice-yearly injections already under review by the FDA.