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May 10, 2024 · K2-18b is an intriguing exoplanet—a planet that orbits a star other than our own. This one is 120 light-years distant and orbits a cool red dwarf star. It's in the constellation Leo in our night ...
Oct 28, 2023 · The sobering reality is that there isn't any yet. There's no scientific evidence for aliens in the declassified UFO videos, in mutilated cows whose injuries are blamed on extraterrestrial ...
- Patrick Pester
Imagine there are 10,000 detectable civilizations and we are likely to find alien life by 2040. If there are a million, we’d discover alien life by 2028. Nobody pretends the Drake Equation is ...
Extraterrestrials: Everything you need to know about the hunt for alien life | BBC Science Focus. Scientists are becoming increasingly optimistic that extraterrestrial life is out there. Here, an astrobiologist explains why.
- Jonti Horner, Astrobiologist
- Steven Tingay, Astrophysicist
- Helen Maynard-Casely, Planetary Scientist
- Rebecca Allen, Space Technology Expert
- Martin Van-Kranendonk, Astrobiologist
I think that has to be a definite yes. But I think the real question is, are aliens close enough for us to discover them? Space is unbelievably big. In the last few decades, we've learned almost every star in the cosmos has planets. Our galaxy, the Milky Way, is estimated to have up to 400 billion stars. If each of those has five planets, we'd have...
Yes, but that's a bold assertion. So, let's be clear what we are talking about. I consider the term "alien" to reference all manner of life, as we understand it on Earth, resident in places other than on Earth. Having said that, there is currently no detailed consensus on the definition of "life". It is a very complex concept. But if we found somet...
I'm of the opinion that it's only a matter of time before we find something that resembles biology somewhere other than on Earth. This is because we're increasingly finding various potential pockets in our solar system that may be hospitable to life as we know it. For instance, consider the under-ice oceans of Europa and Ganymede (two of Jupiter's ...
Yes, but they probably don't look like us. There are more than 100 billion planets estimated to exist in our galaxy alone (with some six billion potentially being Earth-like). Therefore, the probability that life exists elsewhere is all but confirmed. When we hear the word "alien", however, an image of a humanoid lifeform usually springs to mind. B...
A simple answer to this question is no. If we use purely empirical data and assume the question refers to any type of life outside of Earth that is not related to human activity, then the answer – as far as we know – must be no. But, of course, our knowledge relating to this question is finite; we have not investigated every corner of the Universe ...
Sep 10, 2021 · And that’s just what’s in our solar system. The more exoplanets we find around other stars, the more we learn about how many different environments could exist for life. We can’t yet say for sure whether or not aliens exist. To quote Carl Sagan: “The universe is a pretty big place. If it’s just us, it seems like an awful waste of ...
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Apr 8, 2023 · Are aliens real? It's a good question. There currently isn't any evidence for life on other planets, but the universe is a big place, and it seems unlikely that out of the trillions of planets ...
