A diamond contains the only known sample of a mineral from Earth’s mantle—and hints at oceans’ worth of water hidden deep within our planet

The mineral may shake things up by changing its identity at high pressure and temperature

After doubts grew, blockbuster Nature paper is withdrawn over objections of study team

A blue flaw in a gem-quality diamond from Africa is a tiny fragment of Earth's deep interior, and it suggests our planet's mantle contains oceans' worth of water.

As two debates between Nevada’s top-of-the-ticket candidates were shelved this week, the trend of contenders ducking such forums across the country may be eroding one of America’s longest-lasting political traditions, experts say.

We have detected a strange new signal from across the chasm of time and space. A repeating fast radio burst source detected last year was recorded spitting out a whopping 1,863 bursts over 82 hours, amid a total of 91 hours of observation.

“Ialways tell people, it took 40 to 50 years to get where we are,” pediatrician Steven Shane said while discussing childhood and adult obesity in Nevada and throughout the U.S. “We can’t expect to turn the tide and get back to where weight status was in the 1970s overnight.”

After the Supreme Court’s draft opinion rejecting a right to abortion was leaked, public confidence in the Court dropped to its lowest level in the past 50 years. And with additional controversial decisions on guns and climate change, concerns about the court’s legitimacy have increased. To more and more people, the justices operate as political partisans rather than neutral arbiters.

Early voting is less than a month away, and the balance of power in Congress could rest solely on Nevada.