Live Watch CNN US Crime & Justice Immigration Education Transportation Race & Identity World Africa Americas Asia Australia China Europe India Middle East United Kingdom Politics Elections 2026 Trump Facts First CNN Polls Redistricting Tracker Epstein Files Business Tech Media Calculators Videos Markets Pre-markets After-Hours Fear & Greed Investing Markets Now Nightcap Health

Two NASA astronauts will conduct a long-delayed spacewalk today (March 18), and you can watch the action live. NASA astronauts Jessica Meir and Chris Williams will venture outside the International Space Station (ISS) today at around 8 a.m. EDT (1200 GMT), kicking off a spacewalk expected to last about 6.5 hours.

Nasa is gearing up for a major return to lunar exploration after five decades since the Apollo era. Follow this LIVE blog for the latest developments on the Artemis II mission.

NASA approved a 6-minute engine burn to send Artemis II out of Earth’s orbit. The pivotal move put the astronauts on a path humans haven’t traveled in half a century.

Artemis II launches historic mission around the moon; Birthright citizenship arguments at Supreme Court; Trump address; and more on tonight’s broadcast.

NASA's powerful Artemis II rocket is set to launch in Florida, sending four astronauts around the moon. Here's what to expect during liftoff.