Avi Loeb is the Baird Professor of Science at Harvard University, Director of the Galileo Project, and Chair of the UAP Science Advisory Council @uapsac. No DMs
Joined January 2026
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What if some spherical UAP have negative inertial mass?
President Trump said in a recent CBS 60 Minutes interview: ‘Yes, there’s something going on out there.’ Because they’re flying an F-22, which is the best there is, the fastest […] And something goes by them at three times their speed, and it’s round. It’s not aerodynamic.”
Such objects may be an exotic, unrecognized relic of the Big Bang or they may have been produced in the laboratories of alien quantum-gravity engineers.
Thank you to Tim Pool (@Timcast) for hosting me on his show for a wide-ranging conversation about UAP disclosures, the possibility of extraterrestrial technology, time travel, dark matter, the rise of superintelligence, and one of the most important questions in science: Are we alone in the universe?
Watch our conversation: youtube.com/watch?v=14wQiEdK…
I was on CBS Sunday Morning alongside my brilliant fellow UAP Science Advisory Council members, Prof. Matthew Szydagis and our newest member, Ryan Graves (@uncertainvector), to discuss UAP and the Council’s work.
I appreciate Stephen Miller’s (@StephenM) leadership in advancing the administration’s PURSUE initiative to bring greater transparency to UAP records. Our scientific efforts aim to build on this important work by bringing scientific analysis to the evidence made available.
Thank you to @StephenM for his leadership in advancing the release of additional UAP records through the PURSUE initiative. Each release is essential for understanding the nature of UAP.
My strategic goal as the @UAPSAC chair is to collect higher quality data in the future by deploying new sensors in partnership with the Pentagon. My gratitude goes to @rosscoulthart for supporting this data collection initiative in his recent comments on the Reality Check podcast. In the coming years, we might be surprised not only to find out that humans are not at the top of the cosmic food chain, but also that many forms of dark alien technology were undetectable by the sensors that we employed to search for them.
This weekend, I will have the privilege of participating in the hybrid live event “We Interrupt This Program” at the historic Virginia Theatre in downtown Champaign, Illinois. The “Show” is an original satirical play written by four-time Emmy winner Bill Odenkirk. The “Tell” is a live, panel discussion moderated by Emmy-winning PBS host, Sarah Edwards.
On Fox News, former UAP Task Force Director, Jay Stratton, was asked, "Does the government have non-human craft in its possession?" He answered, "Yes, it does."
I want to see evidence beyond a reasonable doubt that UAP, are linked to non-human technologies. After meeting Jay, I invited him to speak with the UAP Science Advisory Council. Jay did not respond to my invitation. Why is it a higher priority for Jay to speak with Fox News than with the @UAPSAC council?
Are We the Indigenous Intelligent Species in Our Cosmic Neighborhood? My discussion last night with @jessecordweber
The claim made in this post is false and does not accurately represent my views or scientific work.
The search for signs of extraterrestrial technological civilizations is a serious scientific endeavor. It deserves to be discussed with intellectual honesty, scientific rigor, and respect for the evidence.
I have seen and heard from many people who are understandably frustrated when my words are taken out of context, distorted, or used to promote misinformation. I understand their frustration and share their concern.
My effort to popularize the scientific search for non-human intelligence and extraterrestrial technology requires that I communicate directly with the public. Going forward, this will also include publicly correcting those who misuse my name, misrepresent my statements, or attribute claims to me that I have never made.
Science advances through evidence, not misinformation. I welcome criticism and scientific debate, but they must be based on what I actually say and do.
Also, I want to thank the many people who continue to support my work and the scientific search for extraterrestrial technology. Your encouragement, curiosity, and positivity provide me with tremendous motivation to continue this important effort.
The universe is vast, and there is much left for us to discover. Let us focus on finding the truth.
My thanks to @GarryPNolan, Peter Skafish, and @uncertainvector for pushing the frontiers of what we know and expanding the boundaries of scientific inquiry, and to Lyn Lear and @PeterDiamandis for hosting and fostering such an open and wonderful discussion.
NEWS: XPRIZE Chairman @PeterDiamandis is actively exploring the creation of a new XPRIZE for providing evidence of alien visitation.
Harvard astronomer @ProfAviLoeb tells me that the criteria under discussion would require a winner to demonstrate the existence of technology created by a non-human intelligence.
Loeb said he's identified a potential funder for the prize, but declined to name the person "until it's finalized."
The XPRIZE Foundation has become a major agenda-setter in the world of science. An XPRIZE about an alien presence in Earth's proximity would be a major milestone in the transformation of a once-fringe topic into a prestigious subject of scientific inquiry.
The potential prize was a focus of a UFO-centric salon that Diamandis hosted in Santa Monica this past weekend.
Co-host Lyn Lear, widow of Norman Lears, tells me that Diamandis and his foundation are "looking into" the creation of such a prize.
Links below to the full story and to subscribe to PARADIGM.
(Event photo originally posted to X by Diamandis)
One of the distinguished guests I met two days ago told me that he recently heard from an official at the highest level in the Pentagon that the U.S. is in possession of alien technology and related biological material. Access to such materials will save time over the interpretation of fuzzy PURSUE videos.
In an interview tonight with Jesse Watters on Fox News, I stated that it is my great privilege to assist the Trump administration in figuring out the nature of UAP. If the U.S. government or its contracted corporations have a physical sample of UAP technology, its meticulous scientific analysis can easily demonstrate that it is technology of alien (non-human) origin by virtue of its material composition, structural complexity or technological capabilities and functions.
Thank you, Peter Diamandis, for graciously hosting me and an extraordinary group for a fascinating discussion about UAP and the future of scientific discovery. Peter and I share the view that ambitious questions deserve ambitious efforts. The time has come for an XPRIZE with a simple challenge: identify a technological object that was not made by humans. The search for Alien technology deserves an XPRIZE.
To me, the most interesting question is, what started the big bang?
Suppose there is another civilization where scientists know how to unify quantum mechanics and gravity, so they understand what conditions are needed in order to start a big bang, a new universe, to give birth to a baby universe. And if they know how to do that, they might have the ambition to create a baby universe in the laboratory. Then, maybe our universe was created in the laboratory of a more advanced civilization.
Even if one in a million UAP is of non-human origin, that would be the most important discovery ever made in the history of humanity. It would have a dramatic impact on our future, far more important than AI.
David Grusch’s new conversation with Joe Rogan highlights the continued push for UAP transparency. I commend David for his efforts and am encouraged and thankful for the leadership on this issue from the White House and Stephen Miller.
The UAP Science Advisory Council (@UAPSAC) stands ready to examine any evidence scientifically. The best path forward is to bring evidence forward and turn disclosure into knowledge.
Current and former employees of the US government are now encouraged to reveal anything they know about unidentified anomalous phenomena. According to David Grusch, who testified under oath in Congress, there are alien spacecraft being held perhaps within corporations, that we don't have access to. The UAP Science Advisory Council (@UAPSAC), would love to work together with the whistleblowers and analyze any data that is out there, in particular any materials that are out there, so that we can get to the bottom of this.
If we do have visitors, say we find an alien probe, it's similar to a cave dweller that finds a cell phone and at first thinks it's just another rock, but eventually presses buttons and realizes it's something else. It delivers a sense of humility. It delivers the message that we are not at the top of the cosmic food chain. We will have to come together and deal with this visitor. Instead of investing three trillion dollars a year in military budgets, we might decide to allocate a major fraction of that to space exploration. To me, it's a silver bullet that could bring peace to the world.
The biggest risk that I see is the effect that AI will have on humans. The only way for us to accomplish planetary peace is by recognizing the humanity in each of us. But what you see with AI is that people get addicted to digital screens and lose the connection with other people. Young kids are getting emotionally connected to AI bots and spend less time with real people. When you spend less time with people, you lose part of your humanity. What AI is doing is robbing us from our humanity. That's the biggest risk.