The U.S. has warned Russia of crippling sanctions if they invade Ukraine - but as Europe’s main natural gas suppliers - it might be hard to get Europe to support that - because Russia provides almost 40% of its natural gas supply.

• Plus, understanding this week’s stock market boomerang.
• And making babies in outer space.

Guests: Axios' Ben Geman, Matt Phillips and Miriam Kramer.

Credits: Axios Today is produced in partnership with Pushkin Industries. The team includes Niala Boodhoo, Sara Kehaulani Goo, Julia Redpath, Alexandra Botti, Nuria Marquez Martinez, Sabeena Singhani, Lydia McMullen-Laird, and Alex Sugiura. Music is composed by Evan Viola. You can reach us at podcasts@axios.com. You can text questions, comments and story ideas to Niala as a text or voice memo to 202-918-4893.