Are We Alone? - Science@NASA
Mar 24, 2025 · We know the galaxy likely holds trillions of planets. 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.
Rare Earth hypothesis: Why we might really be alone in the universe
Jul 29, 2022 · But, to date, neither an international armada of robotic spacefarers nor alien-seeking scientists have found any evidence of extraterrestrial life.
Alien life in Universe: Scientists say finding it is 'only a ... - BBC
Sep 29, 2023 · Nasa's James Webb Space Telescope (JWST) recently detected tantalising hints at life on a planet outside our Solar System - and it has many more worlds in its sights. Numerous missions that are...
Why we aren’t alone in the universe — but might as well be
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. But they wisely choose to...
Are We Alone? Scientists Discuss the Search for Life and ... - Space.com
May 11, 2016 · At a major physics meeting, experts talked about updates to historic predictions about whether humans are alone in the cosmos. In 1961, astronomer Frank Drake wrote an equation to quantify the...
Are We Alone in the Universe? Revisiting the Drake Equation
May 19, 2016 · By applying the new exoplanet data to the universe’s 2 x 10 to the 22nd power stars, Frank and Sullivan find that human civilization is likely to be unique in the cosmos only if the odds of a civilization developing on a habitable planet are less than about one in 10 billion trillion, or one part in 10 to the 22nd power.
The Search For Life: Are We Alone? - NASA
Jun 21, 2022 · Are we alone in the universe? It's a question studied in science fiction, but also by teams here at NASA. Join us as we search for signs of life outside of Earth with scientists Aki Roberge, Ravi Kopparapu, and Shawn Domagal-Goldman.
Are We Alone in the Universe? NASA Calls for New Framework
Oct 27, 2021 · When would we be able to say, “yes, extraterrestrial life has been found?” NASA scientists are encouraging the scientific community to establish a new framework that provides context for findings related to the search for life.
Are we alone in the universe? - MIT Technology Review
Nov 13, 2023 · The Biggest Questions: Are we alone in the universe? Scientists are training machine-learning models and designing instruments to hunt for life on other worlds. Ariel Davis
Are we alone? The search for intelligent life in the universe
Oct 5, 2022 · With roughly 100 billion galaxies hosting countless stars each, the universe seems like it should be teeming with life. But is it? Our understanding of the cosmos is far from complete. But perhaps...