American astronaut Scott Kelly returned to Earth this week after spending a year in space and will speak about the experience in a NASA news conference on Friday afternoon.
Kelly spent a year on the International Space Station, a mission that aimed to to help scientists understand the effects of prolonged zero-gravity exposure on the human body. Kelly’s twin brother, a retired astronaut, participated in parallel studies on Earth.
Kelly and Russian cosmonaut Mikhail Kornienko landed back on Earth in Kazakhstan on Tuesday after a historic 340 days in space.
Read more: Inside the Gigantic Operation to Meet Astronauts Coming Home
TIME chronicled the year-long mission for a documentary series, A Year in Space, which premiered Wednesday on PBS.
More Must-Reads From TIME
- Alison Roman Won't Sugarcoat It
- If Donald Trump Is Indicted, Here's What Would Happen Next in the Process
- All of the Other Major Investigations Into Donald Trump
- Who Should Be on the 2023 TIME100? Vote Now
- The Case for Betting on Succession's Tom Wambsgans
- Postmaster General Louis DeJoy's Surprising Second Act
- In This Texas County, There's No Such Thing as Moving on From COVID-19
- Why Trump's Call to Protest Is Flopping
- Column: Ozempic Exposed the Cracks in the Body Positivity Movement
