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Boeing's lunar gateway demonstrator. Photo: Boeing

Boeing wants to take lessons learned from the International Space Station (ISS) to meet NASA's ambitious 2024 deadline to get humans back to the moon.

Driving the news: The longtime NASA contractor just finished up construction of a full-scale, ground-based model of its prototype for the space agency's lunar gateway. NASA will now start running the prototype through a series of tests.

  • The model — located in Huntsville, Alabama — includes habitation and airlock modules based on Boeing's work developing the ISS.
  • "We have a lot of cool stuff in there," David Pederson, Boeing's test team lead engineer for the gateway, said during a press briefing last week.
  • The demonstrator includes an exercise area with a window, a galley with working water and science experiment boxes.

Details: NASA hopes to launch a lunar gateway as an orbiting base of operations from which astronauts could launch to the lunar surface.

  • Boeing is confident its gateway concept, if selected, would be ready to launch ahead of a 2024 landing.
  • According to Boeing, the modules are designed to launch separately, with the power and propulsion module heading to lunar orbit in 2022.
  • The habitation module would launch one year later.
  • The modules are designed to snap together with little assembly required.

But, but, but: Boeing isn't the only company working on a lunar gateway concept.

  • Lockheed Martin has finished its demonstrator. Northrop Grumman, Sierra Nevada Corp. and Bigelow Aerospace are still working toward turning their models over to NASA for testing.
  • As of March, the space agency says it plans to incorporate the best elements of the demonstrators into the final product, rather than going with one design.

Be smart: NASA's 2024 deadline is extremely ambitious and will likely take a large influx of funding provided by Congress. However, it's unclear whether the Trump administration has enough support to make that lunar mission a reality.

  • The agency was expected to submit its updated budget proposal in mid-April, but that deadline came and went with no word on how much NASA will need to get the job done.
  • In theory, NASA could still aim for the moon without including a gateway in its plans.

Go deeper: All eyes on NASA's commercial crew

Go deeper

Updated 5 hours ago - Sports

Olympics dashboard

Silver medalist Lilly King of Team USA (left) embraces gold medalist Tatjana Schoenmaker of Team South Africa on the podium during the medal ceremony for the Women's 200m breaststroke final on July 30. Photo: Clive Rose/Getty Images

🥇 : U.S. gymnast Suni Lee wins gold in the women's individual all-around

🚣‍♀️: Team USA women's eight rowing fails to reach the podium

🤸🏾‍♀️: Simone Biles reacts to "love and support" after withdrawing from all-around gymnastics and team finals, citing her mental health

🏊: Olympic swimmer Ryan Murphy wins Silver in 200m

📷: In photos: Tokyo Olympics day 6 highlights

🗓: The Olympic events to watch today

🏃‍: Female Olympians push back against double standard in uniforms

Go deeper: Full Axios coverage

Former Michigan Sen. Carl Levin dies at 87

Sen. Carl Levin (D-MI) in 2014. He died Thursday. Photo: Win McNamee/Getty Images

Former U.S. Sen. Carl Levin (D-Mich.) died Thursday, his family and the Levin Center at Wayne Law — which bore his name — confirmed. He was 87.

Why it matters: The Detroit native served for 36 years in the U.S. Senate, serving twice as chairman of the Armed Services Committee and is credited with helping overturn the military's “Don’t Ask, Don’t Tell” rule.

Updated 6 hours ago - Politics & Policy

Military members will be included in Biden's new COVID guidance

Joe Biden. Photo: Anna Moneymaker/Getty Images

Members of the military will be required to get vaccinations or face regular testing, social distancing, mask mandates and restrictions on travel for work, the the Pentagon said on Thursday evening.

Why it matters: The policy was announced for federal workers and onsite contractors earlier on Thursday, part of several new Biden initiatives to get more Americans vaccinated and slow the spread of the Delta variant.