Wednesday, August 12, 2020
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Physicist: alien probes may be too small to see

Posted on Friday, 25 October, 2019 | Comment icon 17 comments

What if alien visitors were microscopic ? Image Credit: CC BY 4.0 ESO / S. Brunier
One scientist has proposed a possible new explanation for why we have yet to encounter intelligent alien life.
The question of whether we are alone in the universe remains one of the biggest philosophical conundrums of our time. While it seems almost inconceivable that our civilization is alone in the cosmos, the fact still remains that we have yet to see any evidence to the contrary.

The Fermi paradox, which highlights the contradiction between the likely existence of extraterrestrial civilizations and the fact that we have still never encountered any, seems to suggest that either there are no aliens out there, or they are so rare that it is unlikely we would ever come across them.

But what if there was another explanation ?

According to astrophysicist Zaza Osmanov from the Free University of Tbilisi in Georgia, the answer could actually be incredibly simple - what if alien probes were so small that we can't see them ?

There seems to be an unwritten assumption that any extraterrestrial visitors we encounter have to be similar in size to ourselves, but this may not be the case. Even if the aliens themselves were comparable in size to a human, their exploratory spacecraft may not be.
It is reasonable to conceive of tiny, perhaps even microscopic space probes traveling the stars.

Osmanov maintains that such small spacecraft could harvest hydrogen atoms floating around in interstellar dust for power and would be a lot more efficient than their full-size counterparts.

It would also be a lot easier for such devices to self-replicate and thus explore larger regions of space.

While spotting such machines might seem next to impossible, Osmanov believes that if we were looking directly at a swarm of them, we may be able to pick up their luminous emissions.

As things stand however, there is no evidence that anything like this has ever visited Earth.

Source: Science Alert | Comments (17)

Tags: Extraterrestrial

Recent comments on this story
Comment icon #8 Posted by highdesert50 on 26 October, 2019, 12:27
Far easier to accelerate small masses and then mesh network to dynamically self-configure dependent upon situation.
Comment icon #9 Posted by Matt221 on 26 October, 2019, 12:46
While I like the idea of teeny little probe I can't say as I'd want a swarm of them to enter me.
Comment icon #10 Posted by the13bats on 26 October, 2019, 14:36
"If" this theory is the case and "if" they are nano then who knows if they dont "gang up" we all might be getting probed and not even know it.
Comment icon #11 Posted by Matt221 on 26 October, 2019, 16:50
Now I'm wondering are the you all mosquitos who come and get you in summer or are they probing Aliens?
Comment icon #12 Posted by the13bats on 26 October, 2019, 18:59
I'm in Floriduh, a swamp and our mosquitos are too big to be nano stealth alien probes.
Comment icon #13 Posted by INDY JONES on 26 October, 2019, 19:55
What do you think about this news... Police are investigating the apparent abduction at gunpoint of a woman in Richmond Hill, Ont. Home surveillance video shows a man stepping out of a car, carrying what appears to be a handgun, threatening to kill the woman before pulling her toward the vehicle. *snip*
Comment icon #14 Posted by Desertrat56 on 26 October, 2019, 20:59
What does that have to do with microscopic alien probes?
Comment icon #15 Posted by the13bats on 26 October, 2019, 21:55
I was thinking that too...
Comment icon #16 Posted by Matt221 on 27 October, 2019, 8:04
Not just me then
Comment icon #17 Posted by Brooksey on 1 November, 2019, 23:22
Of course there's intelligent life out there, we're just not intelligent enough to find it!!

Please Login or Register to post a comment.

  On the forums
Forum posts:
Forum topics:


'Terror crocodile' had teeth the size of bananas
A new study has revealed the immense power of one of the largest crocodilians ever to walk the Earth.
Diamond-encrusted COVID mask sells for $1.5M
A jeweler in Israel has created and sold what is being described as the world's most expensive COVID mask.
John Cleese on the possibility of life after death
The 80-year-old comedy veteran is a keen proponent of the idea that existence does not simply end when we die.
Should lithium be added to our drinking water ?
A new study suggests that adding the psychoactive chemical to water supplies could reduce suicide rates.
Stories & Experiences
Black blob in my room/bed
7-23-2020 | Powell,TN U.S.
Transparent levitating ball
7-14-2020 | Santa Rosa, California
Grim reaper-like visitation
6-16-2020 | Canada
My monster catfish story
6-15-2020 | Dallas texas
Orb of light in room
5-9-2020 | USA/Texas/Waco
Not sleeping alone
5-9-2020 | Los Angeles
Glowing red eyes
5-9-2020 | Fields, Louisiana
Two creature sightings
5-1-2020 | Augusta and Louisana

         More stories | Send us your story
Featured Videos
Gallery icon 
NASA studies underwater 'white smoker' vents
Posted 4-17-2020 | 3 comments
Hydrothermal vents on the ocean floor can teach us about possible habitats on other worlds.
10 strange things about our solar system
Posted 3-17-2020 | 0 comments
A look at some of the most mysterious things about our solar system.
Lizzie - Scotland's other loch monster
Posted 3-8-2020 | 0 comments
Amelia Dimoldenberg investigates the Loch Ness Monster's neighbor.
Adam Savage and Spot
Posted 2-14-2020 | 4 comments
Adam Savage tests out Boston Dynamics' impressive Spot robot.
NASA 2020: Are you ready ?
Posted 1-1-2020 | 3 comments
A look at what's coming up in the world of spaceflight this year.
 View: More videos
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 (c) 2001-2020
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ