(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

"While it's hard to say what makes something more likely to have life, identifying where to look is the first key step." When you purchase through links on our site, we may earn an affiliate ...

Kiah Treece is a former attorney, small business owner and personal finance coach with extensive experience in real estate and financing. Her focus is on demystifying debt to help consumers and ...

What if extraterrestrial civilizations already know about Earth but deliberately avoid contacting us? This episode explores the fascinating Cosmic Zoo and Galactic Club hypotheses, which propose that ...

Assembly Theory shifts the search for life from identifying specific molecules to measuring chemical complexity, offering a ...

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Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance because it is produced by biological synthesis. But that might not be the ...

OLYMPIA, Wash. — State and local offices across Washington are being directed to remove the word “alien” from state statutes and replace it with “noncitizen” under a new law aimed at modernizing legal ...

A ring camera from a Southern California home captured an alien-like figure walking across a yard. NBC News' Camila Bernal spoke to some experts on whether they feel ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. The James Webb Space ...

How would people react if an alien civilization actually made contact with us? Space.com talked to experts, who shared a ...