Astrophysicist suggests alien life might be everywhere

A Columbia University professor has introduced an unusual theory — that humans have yet to discover alien life because it could be woven into the fabric of the universe and even physics itself.

Astrophysicist Caleb Scharf presents this idea in a piece published on the website Nautilus.

According to him, some believe technology might progress so far that "...we wouldn't even realize we were staring at it....it would neatly explain why we have yet to see advanced intelligence in the cosmos around us, despite the sheer number of planets it could have arisen on..."

Check out UFOs and "alien" activity spotted through the years:

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Depictions of UFOs and alien activity
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Depictions of UFOs and alien activity
Described as a leisure home of the 1970s, this flying saucer-shaped house - called the 'Futuro' - is made up of 16 pre-moulded segments of fibreglass. Designed by Finnish architect Matti Suuronen, it is being made under license from Oy Polykem of Helsinki by a Lancashire firm (Waterside Plastics Ltd, of Todmorden) and is described as the leisure home of today and tomorrow.
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Scharf also notes that, given the possibility that other building blocks of life exist outside of molecules, "a civilization could then transcribe itself and its entire physical realm into new forms. Indeed, perhaps our universe is one of the new forms into which some other civilization transcribed its world."

Scharf points out, "...only about 5 percent of the mass-energy of the universe consists of ordinary matter: the protons, neutrons, and electrons that we're composed of. A much larger 27 percent is thought to be unseen, still mysterious stuff."

He also questions if the universe's past unpredictable ways, such as a rapid expansion 5 billion years ago, could be the result of alien manipulations.

Overall, Scharf considers these possibilities to be fun and hopes a lab can one day detect life in dark matter.

RELATED: You don't even have to leave our planet to check out these otherworldly landscapes:

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Alien-looking, otherwordly landscapes found on Earth
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Alien-looking, otherwordly landscapes found on Earth
Dragon blood trees in rocky landscape, Homhil Protected Area, Socotra, Yemen
Mysterious moving rocks at a playa in Death Valley national Park called The Race Track
Turkey, Central Anatolia, Cappadocia, Unesco World Heritage Site, Uchisar village, the camel driver
Fire crater, gas crater, Door to Hell Darvaza crater, Derweze or Darvaza, Karakum Desert, Dasoguz Province, Turkmenistan
Kristal Icecave in Breiðamerkurljökul glacier in Iceland
The Haleakala silversword (Argyroxiphium sandwicense subsp. macrocephalum) is a rare plant found only the island of Maui on the dormant Haleakala volcano.Silverswords live between 3 and 90 years or more. They flower once, sending up a spectacular flowering stalk, and then die soon afterward, scattering drying seeds to the wind. Flowering events can differ dramatically from one flowering season to the next. The reasons for that are not understood.
Giant's Causeway on a cloudy day - Northern Ireland
Take in Athabasca Glacier, Jasper, Alberta, Canada
United States, Oregon, Dayville
Moeraki rocks found on the east coast of new zealand
High Angle View Of Grand Prismatic Spring In Yellowstone National Park
Frozen methane bubbles at Abraham lake at sunrise with beautiful sky.
A sand dune glows red at last light in this landscape image of the Namib Desert.
Salar de Uyuni hexagons at sunset
Colorful mountain in Danxia landform in Zhangye, Gansu of China.
The enchanting pools of Pamukkale in Turkey. Pamukkale contains hot springs and travertines, terraces of carbonate minerals left by the flowing water. The site is a UNESCO World Heritage Site.
Deep underground cave exploration of Karst cave 'Krizna jama', Slovenia. Roughly 8-9 km long, from 30 to 125 m deep, lots of chambers, siphons, corridors, small islands and roughly 40 lakes, stalactites, stalagmites and other specifical Karst rock formations.
Geysir
Dallol is volcano, Danakil desert, Ethiopia.
Michigan, United States of America
Snow covered wave taken during cold in Coyote Buttes North.
Egypt, Baharija, White desert
Cave halong bay
The blue ice cave at lake Baikal
This image was taken in the Fall of 2008 at Tufa State Park, Mono County, Mono Lake, California. This image is very rare as the lake water level is much higher now. I shot this at the cusp of dawn and no filters were used.
Zabriskie Point with Panamint Range in distance, Mojave Desert. Mutant nature Zabriskie Point is a part of Amargosa Range located east of Death Valley in Death Valley National Park in California, United States noted for its erosional landscape. It is composed of sediments from Furnace Creek Lake, which dried up 5 million years ago long before Death Valley came into existence.
Castildetierra
Baobab trees (Adansonia Grandidieri) reflecting in the water under the milky Way, Morondava, Toliara province, Madagascar.
(GERMANY OUT) Western Australia - Nambung National Park - limestone formations, called Pinnacles, at dusk (Photo by Mayall/ullstein bild via Getty Images)
Fingal's Cave on the Scottish Inner Hebrides island of Staffa.
Rocky cliffs reflected in the calm waters of Horseshoe Lake, Jasper National park, Alberta, Canada.
Abstract nature of Lower Antelope Canyon. The canyon is part of a series of slot canyons on Navajo land in Arizona, USA.
Sweden, Halsingland, Voxnan River at sunrise, winter
Huang Shan, Anhui Province, China
Nieve penitente is a spike or pillar of compacted snow or ice caused by differential melting and evaporation.
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