Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Stay on top of the latest market trends

Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

The twin-fuselage, 6-engined plane — the world's largest aircraft by wingspan — took flight on its maiden voyage Saturday morning from Mojave Air and Space Port in Mojave, California.

A tweet previously embedded here has been deleted or was tweeted from an account that has been suspended or deleted.

Details: Built by rocket launch company Stratolaunch Systems Corporation, the aircraft is designed to fly to an altitude of 35,000 feet and launch rockets and satellites into orbit from the air. Per Axios' Miriam Kramer, this will theoretically provide a more flexible way of getting payloads to space without reliance on a fixed launch site.

  • "Whatever the payload, whatever the orbit, getting your satellite into space will soon be as easy as booking an airline flight," said Stratolaunch CEO Jean Floyd in 2018.
  • The company has had some serious setbacks in recent years, including the death of its founder Paul Allen in 2018 and the cancellation of its plan to develop its own rockets.
  • Stratolaunch already has one known customer, Northrop Grumman, which plans to use the plane to send its Pegasus XL rocket into space.

Go deeper

55 mins ago - Health

U.S. ahead of pace on vaccines

A health care worker administers a dose of the Moderna vaccine in Ruleville, Mississippi. Photo: Rory Doyle/Bloomberg via Getty Images

The U.S. is now vaccinating an average of 2 million people a day, up from 1.3 million in early February.

Why it matters: That puts us on track to hit President Biden's goal of 100 million doses a month ahead of schedule.

Updated 3 hours ago - Politics & Policy

Harris breaks tie as Senate proceeds with lengthy debate on COVID relief bill

Photo: Oliver Contreras/Bloomberg via Getty Images

The Senate on Thursday voted 51-50 — with Vice President Kamala Harris breaking the tie — to proceed to debate on President Biden's $1.9 trillion coronavirus rescue package, likely setting up a final vote this weekend.

The state of play: Sen. Ron Johnson (R-Wis.) is forcing the Senate clerk to read the entire 628-page bill on the floor, a procedural move that will likely add 10 hours to the 20 hours already allotted for debate.

4 hours ago - World

Netanyahu campaigns against Biden's plan to save Iran deal

Netanyahu campaigns at a gym last month. Photo: Pool/AFP via Getty

Israeli Prime Minister Benjamin Netanyahu indirectly criticized the Biden administration for its intention to return to the Iran nuclear deal and told his supporters he was prepared to "stand against the entire world" to stop it.

Why it matters: This is a major change of tune for Netanyahu, who had been careful in his statements on the Iran deal and avoided publicly criticizing President Biden. The statement was part of Netanyahu's attempt to rally his base ahead of Israel's election on March 23.

You’ve caught up. Now what?

Sign up for Mike Allen’s daily Axios AM and PM newsletters to get smarter, faster on the news that matters.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!