Saturday on PBS News Weekend, as Ukrainians continue to flee the Russian invasion, President Zelenskyy called the latest deadly attack a war crime. Ukraine's former prime minister discusses the situation on the ground. Then, astronaut Mark Vande Hei discusses what it's like to spend almost a year in space. Also, we examine the impact of air pollution on people of color.

Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG
Find more from PBS NewsHour at https://www.pbs.org/newshour
Subscribe to our YouTube channel: https://bit.ly/2HfsCD6

Follow us:
Facebook: http://www.pbs.org/newshour
Twitter: http://www.twitter.com/newshour
Instagram: http://www.instagram.com/newshour

Subscribe:
PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts
Newsletters: https://www.pbs.org/newshour/subscribe