Stand up for the facts!

Our only agenda is to publish the truth so you can be an informed participant in democracy.
We need your help.

More Info

I would like to contribute

$
Viral image
Viral image
stated on February 23, 2021 a Facebook post:

“NASA discovers THC on meteorite fragment.”

Pants on Fire!
By Ciara O'Rourke
March 4, 2021

No, NASA didn’t discover THC on a meteorite fragment

If your time is short

  • We couldn’t find any evidence to support this claim.
     
  • In 2016, High Times Magazine reported that it appeared to originate on a fake news website.
 
See the sources for this fact-check

A few days after NASA’s Perseverance rover landed on Mars, some more space news started to spread on social media. 

According to what looks like a news headline being shared online, NASA discovered tetrahydrocannabinol, or THC — the stuff that gets marijuana users high — on a meteorite fragment. 

“A team of astrophysicists at the University of Hawaii have created somewhat of a stir within the scientific community after the discovery of trace amounts of Tetrahydrocannabinol,” reads the text below the headline. 

The post also cites a website: thehealthdisorder.com. 

This post was flagged as part of Facebook’s efforts to combat false news and misinformation on its News Feed. (Read more about our partnership with Facebook.)

We reached out to NASA about the post but didn’t hear back. The University of Hawaii system has three universities, and we contacted the two where we found physics departments. University of Hawaii at Mānoa didn’t respond to our questions about the post, but apparently this news that caused “a stir within the scientific community” didn’t reach the chair of the physics and astronomy department at the University of Hawaii at Hilo. 

“I can’t help you on this one,” Dr. Kathy Cooksey said.

We found a Google listing for the story on thehealthdisorder.com, though when we clicked on the link the website was dead.

And we didn’t find any credible news stories corroborating the headline in the post. But it appears it’s been online for several years now. In 2016, High Times Magazine reported that it seemed to originate on a website that publishes fake news stories. 

In the end, we found no evidence that NASA discovered THC on a meteorite fragment. We rate this post Pants on Fire!

 
Our Sources

Facebook post, Feb. 23, 2021

National Center for Complementary and Integrative Health, Cannabis (marijuana) and cannabinoids: What you need to know, visited March 4, 2021

High Times, THC from outer space? Um, No. Feb. 8, 2016

Email interview with Kathy Cooksey, chair and associate professor, University of Hawai’i at Hilo, Feb. 3, 2021

 

Browse the Truth-O-Meter

More by Ciara O'Rourke
Viral image
stated on April 2, 2025 a Facebook post:
“White hats to investigate Wisconsin Supreme Court election.”
False
Facebook posts
stated on March 28, 2025 a Facebook post:
Photo shows a missing police officer in “extreme danger.”
Pants on Fire!
Facebook posts
stated on March 28, 2025 a Facebook post:
Images show damage from an “earthquake in Thailand.”
False

No, NASA didn’t discover THC on a meteorite fragment





Donald Trump
stated on May 4, 2026 a White House event:








Donald Trump
stated on April 23, 2026 remarks at the White House:







Chris Wright
stated on April 19, 2026 an interview on CNN's "State of the Union":