NASA astronaut Christina Koch working on the outside of the International Space Station. Photo: NASA

A history-making spacewalk featuring NASA astronauts Christina Koch and Jessica Meir is now expected to take place Thursday or Friday on the International Space Station, a few days earlier than initially expected, NASA announced Tuesday.

Why it matters: When Koch and Meir venture out for their walk in space, it will mark the first all-female spacewalk ever performed.

Details: The two women were originally expected to go for their first spacewalk next week to help upgrade batteries on the outside of the station.

  • Due to a failed power unit on the station, Meir and Koch will need to work outside to fix that problem first, postponing the walk and others focused on battery replacements.
  • In spite of the failed power unit, the station and its crew are safe, NASA said in a statement.

Go deeper: Space deep dive

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Ruth Bader Ginsburg will lie in state in Capitol's National Statuary Hall

Photo: Getty Images

House Speaker Nancy Pelosi announced Monday that the late Supreme Court Justice Ruth Bader Ginsburg will lie in state in the Capitol's National Statuary Hall on Friday.

The state of play: The Supreme Court also announced Monday that Ginsburg will lie in repose on the front steps of the building on Wednesday and Thursday, allowing the public to pay respects to the late justice outside.

Dan Primack, author of Pro Rata
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The story of last week's Snowflake and Unity Software IPOs had little to do with data warehousing or 3D game development, and lots to do with dizzying "pops" after pricing.

What happened: The Robinhood effect.

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 a.m. ET: 31,103,347 — Total deaths: 961,435— Total recoveries: 21,281,441Map.
  2. U.S.: Total confirmed cases as of 10 a.m. ET: 6,813,984 — Total deaths: 199,525 — Total recoveries: 2,590,671 — Total tests: 95,108,559Map.
  3. Health: CDC updates guidances to say coronavirus can be spread through the air Nursing homes are evicting unwanted patients.
  4. Politics: Testing czar on Trump's CDC contradictions: "Everybody is right."
  5. Education: College students give failing grade on return to campus.
  6. Business: Unemployment concerns are growing.
  7. World: "The Wake-Up Call" warns the West about the consequences of mishandling a pandemic.