Did NASA Find a Mysterious Doorway on Mars? No, but That’s No Reason to Stop Looking

Scientists seeking evidence of extra-terrestrial life demand much stronger evidence than someone looking for a geological formation.

Advertisement
By The Conversation | Updated: 25 May 2022 16:18 IST
Highlights
  • NASA's Curiosity rover captured an image on Mars that looked like a door
  • NASA later revealed the "door" was only about 45 cm high
  • Seeking evidence of extra-terrestrial life demands much stronger evidence
Did NASA Find a Mysterious Doorway on Mars? No, but That’s No Reason to Stop Looking

The image of what appeared to be a door was taken by Mast Camera onboard the Curiosity rover

Photo Credit: NASA/JPL-Caltech/MSSS

For the past ten years, NASA's Curiosity rover has been trundling around the surface of Mars, taking photos in its quest to understand the history and geology of the red planet and perhaps even find signs of life. Last week it took a photo which appeared to show a doorway carved into the rock. It's the sort of thing that on Earth might indicate an underground bunker, such as an air-raid shelter.

Seeing is not always believing 

At first sight, the picture is totally convincing. At second sight, maybe not. The passage seems to go in only a short way before the steeply descending roof meets the floor.

And then those killjoys at NASA tell us its only about 45 cm high. Still, who said Martians had to be the same height as us? But then geologists point out several straight-line fractures can be seen in this site, and the “doorway” is where they happen to intersect.

Advertisement

Such a pity. It would have been so exciting if it had been a real doorway. Instead it joins the face on Mars, the spoon on Mars, the cube on the Moon, and all the other things seen in photos from space that turn out not to be as exciting as we thought.

Faces in the clouds

Worse, the “doorway” joins the even longer list of wacky images like the cornflake that looks like Australia, the cats that look like Hitler, and so on. And who hasn't seen a face in the clouds? The sad fact is that when presented with an unclear or unfamiliar image, humans try to turn it into a familiar-looking object. Scientists call our tendency to do this “pareidolia”.

Advertisement

It's easy to understand why it happens. We likely evolved this tendency because spotting important things like predators or faces, even when the light is poor or they are partly obscured, gave us an advantage. And getting false positives – seeing a predator where there is none – is better than not seeing a predator who then eats you.

No signs of life

Reasonable explanations won't deter the conspiracy theorists who say the doorway really is evidence of life on Mars, and maintain that scientists are engaged in some sort of cover-up.

Advertisement

If I were trying to do a cover-up, I wouldn't be releasing the photos! So, a conspiracy doesn't seem very likely.

But there's also a lesson here for serious searchers for alien life. As astronomer Carl Sagan said, extraordinary claims require extraordinary evidence.

Following this maxim, scientists seeking evidence of extra-terrestrial life demand much stronger evidence, than, say, someone looking for a geological formation. And despite decades of searching for evidence of life on Mars, we have found nothing.

It is still possible there may once have been life on Mars. We may yet find some fossilised relics of ancient cellular life. But suddenly finding an artefact such as a doorway, or a spoon, seems unlikely.

The bigger picture

There's a similar story with the broader search for extra-terrestrial intelligence (SETI). For years, SETI scientists have been searching the skies for signals from other civilisations, but so far we have found nothing. But nearly all our searches have been on the nearest few stars, and so in a sense the search has barely started.

Meanwhile, we continue to be bombarded with photos purporting to show UFOs (Unidentified Flying Objects) or UAP (Unidentified Aerial Phenomena).

The vast majority of these photos are probably fakes, or mistaken photos of familiar objects such as weather balloons. But as scientists, we must keep an open mind. In among the rubbish, perhaps there may be one or two photos or videos that really could stretch our current knowledge.

The problem is that if someone presents me with a photo purporting to show a flying saucer, I know that the odds overwhelmingly favour it being a fake, and so I'm likely to dismiss it rather than wasting my time examining it carefully. But supposing I'm wrong? Similarly, when we see a doorway, or a face, or a spoon, on Mars, it's all too easy to dismiss it out of hand. But we must remain alert to the possibility that one day we might find archaeological evidence of past life on Mars.

Admittedly, this seems very unlikely. But not impossible. It would be a terrible loss if, among all our careful searching through the data, we missed the thing we had been searching for because it was too easily dismissed as a trick of the light.


How is Alexa faring in India? We discuss this on Orbital, the Gadgets 360 podcast. Orbital is available on Spotify, Gaana, JioSaavn, Google Podcasts, Apple Podcasts, Amazon Music and wherever you get your podcasts.
Affiliate links may be automatically generated - see our ethics statement for details.
 

For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who'sThat360 on Instagram and YouTube.

Further reading: NASA, Curiosity Rover, Mars, Mars Rover
Advertisement

Related Stories

Popular Mobile Brands
  1. Nintendo Switch 2 Debuts With Joy-Con 2 Controllers: Price, Features
  2. OnePlus 13s Review
  3. OnePlus 13s Launched in India: Know Price, Specifications and More
  4. Poco F7 Launch Timeline, Key Specifications Leaked Ahead of Debut
  5. OnePlus 13s vs iQOO 13: Price in India, Specifications Compared
  6. Samsung Galaxy Z Fold 7, Z Flip 7 May Be Unveiled at New York Unpacked Event
  7. OnePlus Pad 3 With 12,140mAh Battery Launched in India: Check Features
  8. Redmi Pad 2 to Launch in India on This Date
  9. Nothing Headphone 1 to Launch Alongside Nothing Phone 3 on July 1
  10. Oppo Teases Launch of New Smartphone in India; Could Be Reno 14
  1. Huawei Pura 80 Pro, Pura 80 Pro+ Design Teased; Pre-Reservation Begin
  2. Mistral Code AI-Powered Coding Assistant Introduced for Enterprise Developers
  3. Nothing Headphone 1 Launch Date Set for July 1, to Arrive Alongside Nothing Phone 3
  4. Ethereum Foundation Announces Overhauled Treasury Strategy Amid Scaling Push
  5. Google DeepMind’s Demis Hassabis Wants to Build AI Email Assistant That Can Reply in Your Style: Report
  6. Starlink Reportedly Nears India Launch With DoT Approval for GMPCS License Expected Soon
  7. Oppo Confirms Arrival of New Smartphone in India; Could Be the Reno 14
  8. Redmi Pad 2 India Launch Date Set for June 18; Design, Colour Options Teased
  9. Xiaomi Smart Band 10 Leaked Images Suggests a Familiar Design; Specifications Tipped
  10. OnePlus Pad 3 With Snapdragon 8 Elite SoC, 12,140mAh Battery Launched in India: Specifications
Gadgets 360 is available in
Download Our Apps
Available in Hindi
© Copyright Red Pixels Ventures Limited 2025. All rights reserved.