Why female astronauts like Sunita Williams don’t tie their hair in space: Here’s the science behind it

Sunita Williams floating effortlessly in the microgravity environment of the International Space Station (ISS). Her hair, a striking mane of salt-and-pepper curls, moved freely around her head, completely unaffected by gravity. For many, this image might raise an interesting question, how do astronauts manage their hair in space? It turns out haircare is just as essential beyond Earth as it is on the ground.

«Woman with wild hair»: Trump’s comment on Sunita Williams

Recently, former US President Donald Trump made headlines with his remarks about NASA astronaut Sunita Williams. During a press conference about the astronauts’ prolonged stay in space, Trump humorously noted, “I see the woman with the wild hair, good, solid head of hair she’s got. There’s no kidding, there’s no games with her hair.” While the internet took this as meme-worthy material, it also highlighted something unique, how astronauts, particularly women, manage their hair in space.

Why do women astronauts keep their hair open in space?

In microgravity, hair doesn’t fall naturally as it does on Earth. So, why do many female astronauts leave their hair open instead of tying it up? Here are a few reasons:

• No Need for Hair Ties: With no gravity pulling hair downward, there’s no practical reason to tie it back.
• Easier Washing: Astronauts use no-rinse shampoo and a towel, making it more convenient to let their hair flow naturally.
• Ventilation System Helps Drying: Airflow inside the International Space Station (ISS) helps evaporate moisture, eliminating the need for blow dryers.
• Personal Preference: Some astronauts simply enjoy having their hair open, and since it doesn’t get in their face as it would on Earth, there’s no discomfort.

Karen Nyberg’s space