"Project Hail Mary," in theaters March 20, champions the joy of learning in a humorous take on the scientific method and apocalyptic space thrillers.

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

An experiment mimicking conditions on the Saturn moon suggests that cell-like bubbles don’t form in methane lakes, puncturing hopes for alien life.

An old NASA science satellite is no more. The U.S. Space Force says the Van Allen Probe A plunged uncontrolled from orbit on Wednesday, reentering over the Pacific west of the Galapagos Islands.

Many people who don’t believe one conspiracy theory about that station—known as the High-frequency Active Auroral Research Program, or HAARP—believe another. A common misconception is that it can ...

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