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Oct 28, 2023 · Seager believes we'd confirm the existence of alien life only with sample-return missions — collecting samples from another planet or moon and bringing them back to Earth for study, in-situ ...
- Extraterrestrial evidence: 10 incredible findings about aliens from ...
By Adam Mann. published 24 December 2020. Here on the little...
- Extraterrestrial evidence: 10 incredible findings about aliens from ...
- Is E.T. phoning us from Proxima Centauri? The answer to weird signals happening in the universe is never aliens, until maybe it is. Earlier this month, researchers announced that they had captured a very mysterious beam of energy in the radio part of the electromagnetic spectrum at 980 megahertz, coming from the closest star to our own.
- Alien bacteria might live in the clouds of Venus. Astrobiologists were a-twitter with anticipation and skepticism in September when news broke of potential evidence of life in the upper clouds of Venus.
- 'Oumuamua could still be an alien artifact. Two years ago, scientists spotted a cigar-shaped object hurtling through the solar system. Dubbed 'Oumuamua, the entity is considered by most to be an interstellar comet flung out from around another star.
- Navy declassifies UFO videos but don't believe the hype. A fair number of Earthlings don't care what ambiguous evidence scientists come up with to show that aliens are out there.
- It’s a numbers game, and probability suggests aliens are out there.
- We already know of hundreds of potentially habitable planets. We are able to measure the atmospheres of these exoplanets using a technique called spectroscopy.
- We’ve found life on earth in places that we didn’t think life could possibly exist. When we’re contemplating the existence of life beyond our planet, it’s worth considering that we’ve discovered microbes inhabiting spaces on Earth where the idea of survival was previously inconceivable.
- The life that’s out there may not be intelligent life.
- 1976, The Viking Mars landers detect chemical signatures indicative of life. Tests performed on Martian soil samples by NASA’s Viking landers hinted at chemical evidence of life.
- 1977, The unexplained extraterrestrial “Wow!” signal is detected by an Ohio State University radio telescope. In August 1977 an Ohio State University radio telescope detected an unusual pulse of radiation from somewhere near the constellation Sagittarius.
- 1996, Martian “fossils” are discovered in meteorite ALH84001 from Antarctica. NASA scientists controversially announced in 1996 that they had found what appeared to be fossilised microbes in a potato-shaped lump of Martian rock.
- 2001, More rigorous calculations connected to the 1960s “Drake equation” suggests that our galaxy may contain hundreds of thousands of life-bearing planets.
- The Paradox That Started It All
- #Greatfilter
- Do Not Disturb The Aliens
- A "Gaian"-Tic Bottleneck
- Trapped in Deep Oceans
- Missed Signals
- We Are Being Impatient
To put it mildly, our solar system is very old. In fact, scientists are still figuring out just how old — clues gathered from meteorites suggest it is almost 5 billion years old, and surrounding star systems are likely billions of years older. While interstellar travel still seems to be a distant dream, new technology is born every year that allows...
Basic probability asserts that alien life must exist. Since we haven't made contact yet, one theory goes, there must be something barring life from interstellar travel or, at least, barring it from communicating with other alien species. This barrier is known as the "Great Filter," and it is a force or event that stops a civilization from getting t...
Another hypothesis asserts that alien civilizations certainly exist, but they're simply inactive. That's the "aestivation hypothesis" (aestivation refers to an organism's state of prolonged inactivity, similar to a bear hibernating or a frog that buries itself in sand during hot weather), which was put forth by researchers from Oxford’s Future of H...
According to the "Gaian Bottleneck" hypothesis, life needs particular environmental conditions to develop, and they're not so common. Astrobiologists at the Australian National University penned their explanationto the Fermi Paradox in 2016. Extinction is "the cosmic default for most life that has ever emerged on the surfaces of wet rocky planets i...
In 2015, after nearly a decade in transit, NASA's New Horizons spacecraft became the first to do a close flyby of Pluto. It offered humanity its first look at its icy surfaceand raised questions about the possibility of subsurface oceans of water, and lots of methane and nitrogen. These questions put Pluto on a short but growing list of worlds with...
For the past eighty years or so, we've been listening for signs of extraterrestrial life with radio technology. The Allen Telescope Array, situated 470 km (290 miles) northeast of San Francisco, is one of the biggest — since 2007, 42 dishes have stood at the ready to scan the skies regularly in the hope of receiving radio signals from extraterrestr...
We've only been actively reaching out for alien life for about a century — a mere blip in the long history of the solar system and of the universe overall. Evan Solomonides, an astrophysics and mathematics undergrad and researcherat Cornell University, suggests that it could take a while — about 1,500 yearsfrom now, to be precise — before we hear f...
- Victor Tangermann
Jan 6, 2020 · Aliens exist and it is possible they are among us on Earth, the first Briton to go into space has said. Dr Helen Sharman told the Observer Magazine that extra-terrestrial life is bound to be...
Dec 25, 2021 · Explainer. Do aliens exist? The key mysteries that could be unlocked after the James Webb telescope launched. The world's most powerful telescope is set to profoundly transform scientists' understanding of the universe and our place in it. By Alexa Phillips, news reporter. Saturday 25 December 2021 19:18, UK.
