Neil deGrasse Tyson posted a gym selfie in a muscle shirt and people are loving it
"A physicist thirst trap is the pleasant surprise I didn't know I needed."

Neil deGrasse Tyson in a visit to NASA
For most of us, National Pi Day (March 14th, of course) came and went without much fanfare. Maybe a few show-offs recited the famous 3.14 number to as many decimals as they could remember, or someone whipped up a blueberry pie in a punny homage. But if you happened to open Facebook and follow astrophysicist Neil deGrasse Tyson, you were in for a unique surprise.
First, some might ask: what is pi? In the piece, "What is Pi, and How Did it Originate" by Steven Bogart for Scientific American, he explains, "Succinctly, pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle's size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14."
Pie Pi Day GIF by PusheenGiphy
Here's Neil on TikTok with a cute video in anticipation of Pi Day. In its description, he writes, "We're just a few days away from #PiDay. Here's a friendly reminder to share with your friends along with a few jokes to use this year:
Why should you never start talking to pi at a party? Because it just goes on forever. What did pi say to its sweetheart? You look radian today. What was Sir Isaac Newton’s favorite dessert? Apple pi."
@neildegrassetyson We're just a few days away from #PiDay 🤓 Here's a friendly reminder to share with your friends along with a few jokes to use this year: 🥧 Why should you never start talking to pi at a party? Because it just goes on forever. What did pi say to its sweetheart? You look radian today. What was Sir Isaac Newton’s favorite dessert? Apple pi.
Over on Facebook on March 13th, he shared a photo of the moon, and in a separate post, a little more information and some fun recommendations about Pi. "Pi Day (3.14) Pi has a few more digits than that. But 3.14 can get you far. Wanna get your geek on? Celebrate at 1:59:26. That gets you 3.14 1:59:26, the first seven decimal places of Pi."
The next morning, around dawn Pacific Standard Time, Neil changed his profile picture to one in which he's wearing a sleeveless muscle shirt, standing in front of a mirror at what appears to be a gym. Yes, Neil gave us a gym selfie, and why wouldn’t he?
selfie gym GIFGiphy
His followers seemed delighted, with the comments reflecting a balanced mix of good humor and earnest compliments. In one of the top comments, someone wrote, "A physicist thirst trap is the pleasant surprise I didn’t know I needed. You’re in fine form, sir." Yet another seemed (jokingly) threatened: "Damn bro, save some science for the rest of us."
This person disagreed that Neil was seeking validation: "I don't know why, but I just cannot make myself see this as a thirst trap. I know you weren't even meaning it in a bad way, but he is just so humble that anything like this just somehow makes him more human and accessible. Like he's having a confident day and wants to commemorate it."
A few people really honed in on how toned his muscles are. "Neil DeGuns Tyson," one person exclaimed, while another wrote, "Don't forget, he was a high school wrestler. The muscle never completely goes away."
Neil Degrasse Tyson Whatever GIFGiphy
This commenter was perhaps referring to Neil's propensity to debate: "Feelin' cute. May agitate some astrologers later. Idk."
And lastly, this person was hopeful that the photo is the start of a training montage: "Please tell us you're training for Cosmos Season 3.... we need this!"