Jul 24, 2017

There may be more water on the moon than we thought

NASA/JPL/Northwestern University

Scientists at Brown University have found evidence that the moon could contain more water than previously thought.

How they found it: Using images of the moon's surface, researchers measured the amount of water trapped in volcanic deposits across the surface of the moon by looking at sunlight reflected from the rocks.

"It's not much [water], maybe a couple hundreds parts per million, but the size of these deposits are huge, you have a lot of material to work with," Ralph Milliken, the lead author of the study, told Popular Science. "Theoretically, we could extract water from these deposits for human exploration."

Why it matters: If — and that is a big if right now — water on the moon could be extracted, it could be used as a pitstop on the way to Mars. Elon Musk suggested something similar recently in calling for a base for the moon.

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 1 p.m. ET: 745,308 — Total deaths: 35,307 — Total recoveries: 156,875.
  2. U.S.: Leads the world in confirmed cases. Total confirmed cases as of 1 p.m. ET: 143,672 — Total deaths: 2,575 — Total recoveries: 4,865.
  3. Federal government latest: The White House will extend its social distancing guidelines until April 30 — Hospital ship the USNS Comfort arrives in Manhattan.
  4. Business latest: Macy's will furlough the majority of it's workers this week, as the chain's stores remain closed.
  5. World updates: Spain and Italy extend lockdown deadlines while Italy becomes second country to surpass 100,000 confirmed cases.
  6. 🎧 Podcast: Living with the coronavirus
  7. What should I do? Answers about the virus from Axios expertsWhat to know about social distancingQ&A: Minimizing your coronavirus risk
  8. Other resources: CDC on how to avoid the virus, what to do if you get it.

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U.S. coronavirus updates: Majority of governors order residents to stay home

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Andrew Witherspoon/Axios

At least 29 state governors have ordered their residents to stay home to promote social distancing and limit community spread from the coronavirus pandemic as the U.S. copes with more than 144,000 positive cases — more than any other country in the world, per Johns Hopkins data.

The big picture: COVID-19 killed over 2,500 people in the U.S. by Monday. That's far fewer than in Italy, where over 10,700 people have died — accounting for a third of the global death toll. The number of people who've recovered from the virus in the U.S. exceeded 4,800.

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Maryland becomes latest state to issue coronavirus stay-at-home order

Gov. Larry Hogan. Photo: Jim Spellman/Getty Images

Maryland Gov. Larry Hogan announced Monday he is ordering residents to stay at home effective 8 p.m. due to the coronavirus, except for those engaged in essential services, including health care and government functions.

The big picture: Maryland is the latest state to announce policies to enforce social distancing, which have affected almost 250 million Americans. More than 1.5 billion people worldwide had been asked to stay home as of last week.

Go deeperArrowUpdated 41 mins ago - Health