Winnie Harlow walks the runway during the Christian Siriano Fall/Winter 2025 fashion show at Chelsea Industrial during New York Fashion Week on Thursday, Feb. 6, 2025, in New York. (Photo by Charles Sykes/Invision/AP) Coco Rocha,

The "Science Guy" brought his formidable presence ― and understated sense of style ― to New York Fashion Week for a great cause.

New York Fashion Week is getting off to an early start tonight with a Marc Jacobs show. He’s presenting a see-now, buy-now spring 2025 collection at the New York Public Library and it’s sure to be pointed.

NYFW is kicking off a week ahead of the rest of fashion month. The schedule is abuzz with the returns of Calvin Klein and Thom Browne, plus notable debuts (and some absences).

Spring Fashion Week is officially underway, and walking in one of the shows is everyone’s favorite TV scientist, Bill Nye. Below, we have all the details on why he walked, which show he was in and the inspiring reason he teamed up with the brand in the first place.