Groundwater is considered the largest reservoir of liquid freshwater on Earth and a habitat for complex microbial communities that drive essential biogeochemical cycles. Until now, the role of viruses ...

Deep beneath the Earth's surface, in the pores and crevices of rock, live huge communities of microorganisms. They are invisible to the naked eye—yet they play a central role in the quality of our ...

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New York is expensive — it’s true. But on any given day, you can enjoy art without spending a dime. Some museums offer free admission every day or on specific days. Others, like the Metropolitan ...

Companies must pay as much attention to the hard side of change management as they do to the soft aspects. By rigorously focusing on four critical elements, they can stack the odds in favor of success ...

Download the 2026 PECOTA Percentiles spreadsheet (Super-premium membership required. Premium members will be able to download the spreadsheet starting February 10 ...

The Doomsday Clock is a design that warns the public about how close we are to destroying our world with dangerous technologies of our own making. It is a metaphor, a reminder of the perils we must ...

For more than 160 years, the National Academies have provided nonpartisan, evidence-based advice on decisions that affect our nation. Browse the listing of projects and activities to see examples of ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—poses a risk to humans when it falls to the ground. To locate possible crash sites, a Johns Hopkins University ...