The NASA logo is displayed at the agency's booth. Photo: Ethan Miller/Getty Images

NASA is deploying The Mars Helicopter, "a small, autonomous rotorcraft, [that] will travel with the agency’s Mars 2020 rover mission, currently scheduled to launch in July 2020," the agency announced in a press release.

The problem facing NASA engineers: How to overcome Mars’ relatively thin atmosphere, which would doom any conventional craft. Proving this concept could help with future human exploration of the planet.

The details: "The full 30-day flight test campaign will include up to five flights of incrementally farther flight distances, up to a few hundred meters, and longer durations as long as 90 seconds, over a period. On its first flight, the helicopter will make a short vertical climb to 10 feet (3 meters), where it will hover for about 30 seconds."

It's goals: "The rover will conduct geological assessments of its landing site on Mars, determine the habitability of the environment, search for signs of ancient Martian life, and assess natural resources and hazards for future human explorers."

Go deeper: NASA's Mars helicopter technology demonstration.

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Coronavirus cases rise in 33 states

Data: The COVID Tracking Project, state health departments; Map: Andrew Witherspoon, Sara Wise, Naema Ahmed, Danielle Alberti/Axios

The coronavirus pandemic keeps getting worse, all across the country. Thirty-three states saw their caseloads increase this week, continuing a scary nationwide trend that’s been getting worse since mid-June.

Why it matters: The U.S. is right back in the situation we were afraid of earlier this year, with a rapidly spreading outbreak, strained hospitals, and projections of more than 200,000 deaths by the end of the year.

Updated 7 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Global: Total confirmed cases as of 10 p.m. ET: 12,009,301 — Total deaths: 548,799 — Total recoveries — 6,561,969Map.
  2. U.S.: Total confirmed cases as of 10 p.m. ET: 3,053,328 — Total deaths: 132,256 — Total recoveries: 953,420 — Total tested: 37,532,612Map.
  3. Public health: Houston mayor cancels Republican convention over coronavirus concerns Deaths are rising in hotspots — Déjà vu sets in as testing issues rise and PPE dwindles.
  4. Travel: United warns employees it may furlough 45% of U.S. workforce How the pandemic changed mobility habits, by state.
  5. Education: New York City schools will not fully reopen in fallHarvard and MIT sue Trump administration over rule barring foreign students from online classes.
  6. 🎧 Podcast: A misinformation "infodemic" is here.

Transcripts show George Floyd told police "I can't breathe" over 20 times

Photo: Gary Coronado/Los Angeles Times via Getty Images

Newly released transcripts of bodycam footage from the Minneapolis Police Department show that George Floyd told officers he could not breathe more than 20 times in the moments leading up to his death.

Why it matters: Floyd's killing sparked a national wave of Black Lives Matter protests and an ongoing reckoning over systemic racism in the United States. The transcripts "offer one the most thorough and dramatic accounts" before Floyd's death, The New York Times writes.