Mar 24, 2025 · Our telescopes in space and on the ground, and our remote-sensing technology, grow ever more powerful. Yet so far, the only life we know of is right here at home.

Jul 26, 2025 · Ever since humans first looked up at the night sky, one question has echoed across generations, across cultures, across entire civilizations: Are we alone? It is not just a question …

Aug 26, 2024 · Recently, a philosopher has advanced a proposal to resolve this paradox: We are not alone in the universe, and there are many alien civilizations out there.

Sep 30, 2025 · Absent any answer, it’s entirely reasonable to think that our planet is, and that we are, either as common as dirt or astronomically implausible enough to represent life’s sole …

Sep 29, 2023 · Thirty years ago, we had no evidence of planets orbiting other stars. Now more than 5,000 have been discovered, which astronomers and astrobiologists can study in …

Jul 28, 2025 · Researchers from the University of Colorado’s Laboratory for Atmospheric and Space Physics are helping lead efforts to plan NASA’s next-generation large space …

Nov 13, 2023 · But whether or not any other part of it harbors life, the cosmos is our home. We can choose to be lonely or to embrace the beauty and wonder all around us.

ZURICH, Switzerland — In our quest to answer whether we’re alone in the universe, astronomers are preparing for a major advancement: new space telescopes capable of scanning distant …

Mar 1, 2024 · And nearly 50 years after the first of two landers touched down on Mars, we're no closer to an answer as to whether there's life — out there. Scientists haven't stopped looking.

Jul 29, 2022 · In 2000, two researchers, Peter Ward and Donald Brownlee, published a book that offered a possible explanation for our species’ apparent aloneness. It is called Rare Earth: …