The National Reconnaissance Office has now declassified a satellite program used to spy on America’s adversaries ...

Some 150 million years ago sauropods dramatically shaped the dinosaur ecosystem in what is now the western U.S., according to a new study ...

In the latest bout of winter weather, a bomb cyclone could bring blizzard conditions to the Carolinas while freezing ...

After evacuating four astronauts from the ISS last month, NASA is looking ahead to its next crewed mission to the space ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific ...

Synchrotron radiation has revealed a star map made by the ancient astronomer Hipparchus that was thought to be lost to time ...

An exoplanet called HD 137010 b might be the closest thing astronomers have ever seen to “Earth 2.0.” The trouble is that ...

A study of more than 320,000 people found that night owls are more likely to engage in risky behaviors, like smoking and poor ...

A century ago, Erwin Schrödinger came up with an equation that says how the quantum world behaves. Now scientists are asking ...

Novel artificial lungs could help keep people whose lungs no longer function alive long enough to get an organ transplant ...

DeepMind’s AlphaGenome AI model could help solve the problem of predicting how variations in noncoding DNA shape gene ...

These polar bears appear to be maintaining their physical health despite the loss of sea ice—their preferred hunting grounds ...