{
  "id": 9712460,
  "title": "Ask Ethan: If intelligent alien life exists, will we make contact?",
  "url": "https://urgent.news/2026/09/25/ask-ethan-if-intelligent-alien-life-exists-will-we-make-contact",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-25T06:00:00.000Z",
  "source": {
    "name": "Big Think",
    "slug": "big-think",
    "url": "https://bigthink.com/starts-with-a-bang/intelligent-alien-life-make-contact/"
  },
  "original_language": "en",
  "account": "For generations, people have looked up at the stars, contemplating whether other beings or civilizations exist beyond our own. In recent years, we have scanned thousands of star systems for any signs of life, using radio waves, other forms of light, and even cosmic particle signatures. Despite discovering numerous planets, including some that could potentially support life, we haven't found any evidence of life beyond Earth. However, the universe is immense, and the chances of encountering some form of life in this cosmic lottery are vast. This leads us to the question posed by Brian George Melville: \"Given the vast distances involved and the speed of light at 38,000 miles-per-hour, will we ever make contact with other intelligent life?\"\n\nEven if we could only communicate by traversing interstellar distances, it would be a daunting task. We'd essentially have to choose from the closest star systems randomly, potentially limiting ourselves to only the nearest ones. Nevertheless, based on our current understanding of searching for life in the universe, even without any positive detections so far, we have reason to be optimistic about the possibility of contact in the future.\n\nOne challenge we face is the limited sample size of life we have observed—only Earth. We know that life arose on Earth, sustained itself for billions of years, evolved many crucial features, developed intelligence, and reached a point where humanity could start exploring the universe. Earth, therefore, is a proven success story. However, since Earth is the only instance of successful life that we have, we only have constraints on what types of life are not present anywhere else in the universe.\n\nWhen we send a signal from Earth, it travels at the speed of light. Therefore, a star 100 light-years away would need to wait 100 years to receive that signal. Conversely, when we observe a star 100 light-years away, we're seeing it as it was 100 years prior—when the light we're receiving first emitted. Currently, there is no evidence of life existing in any other known worlds within our solar system, including planets, dwarf planets, and moons. Despite the possibility of life existing elsewhere, from past or subterranean life on Mars, to potential life in the atmospheres of Venus, or life in the liquid oceans of moons such as Titan, Europa, Enceladus, Triton, or the Kuiper belt worlds, we currently lack any concrete evidence.\n\nOnly our solar system provides any confirmation of life, and even then, it's limited to Earth. Beyond our solar system, there's no evidence of extraterrestrial life. We haven't encountered any spacecraft from other galaxies or civilizations, and no signals of intelligent origin have reached our detectors. Moreover, no planets, exoplanets, or beacons indicate the existence of life elsewhere in the galaxy. Furthermore, there are no planets that display features similar to Earth, such as oceans, continents, oxygen-rich atmospheres, evidence of photosynthesis, or any other indicators of life beyond shape, size, raw composition, and temperature.\n\nHowever, as Carl Sagan famously said, \"absence of evidence is not evidence of absence.\" Given the limitations of our current technology and the relatively short time we've been actively searching, we can't draw definitive conclusions about the existence of life beyond Earth. Thus, while we haven't made contact with other intelligent life forms yet, there's every reason to believe that it's only a matter of time before we do.",
  "summary": "For countless generations, humanity has gazed at the stars, planets, and great canopy of the Milky Way in the night sky, wondering who else or what else may be out there. Here in 2026, we’ve searched tens of thousands of star systems for signs of life, for signals of potentially intelligent extraterrestrial origin, including through radio waves, other forms of light, and even cosmic particle…",
  "key_points": [
    "Earth is the only known planet with life, providing a successful life example.",
    "Signals from Earth take years to reach distant stars due to light speed.",
    "Absence of evidence isn't evidence of absence; future technology may reveal extraterrestrial life."
  ],
  "editors_take": "The ongoing search for extraterrestrial life, despite current limitations and lack of evidence, leaves room for optimism about future contact with intelligent life forms elsewhere in the universe.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}