Sep 21, 2019

See an ice avalanche on Mars

Photo: NASA/JPL/UA

A photo taken in May by NASA's Mars Reconnaissance Orbiter shows an avalanche of ice falling on the planet.

What they're hearing: "Every spring the sun shines on the side of the stack of layers at the North Pole of Mars known as the north polar layered deposits. The warmth destabilizes the ice and blocks break loose," NASA said in an image description.

  • "When they reach the bottom of the more than 500 meter tall cliff face, the blocks kick up a cloud of dust."

The MRO has been beaming back photos of Martian geology since its arrival in orbit around the planet in 2006.

The bottom line: A fleet of satellites orbiting Mars allows us to see the changing face of the Red Planet throughout the year, and sometimes its surface looks remarkably similar to Earth.

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Minneapolis unrest as hundreds protest death of George Floyd

Protesters and police clash during demonstration on Wednesday over the death of George Floyd in custody outside the Third Police Precinct. Photo: Kerem Yucel/AFP via Getty Images

Minneapolis police clashed for a second night with protesters demonstrating the death of George Floyd, an African American man who died in police custody.

The latest: Minnesota Gov. Tim Walz tweeted late Wednesday that the situation where the clashes were taking place was "extremely dangerous" as he urged people to leave the area. There were multiple news reports of police firing tear gas at protesters and of some people looting a Target store.

Blue Cross Blue Shield insurers sue CVS, alleging drug pricing fraud

Photo: John Lamparski/SOPA Images/LightRocket via Getty Images

Six Blue Cross Blue Shield insurers have sued CVS Health, alleging the pharmacy chain overcharged them based on "artificially inflated prices" for generic drugs and concealed the true cash prices of those drugs.

The big picture: CVS has faced legal scrutiny over its cash discount programs since 2015, and this lawsuit adds big names to a mounting problem.

World coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

New Zealand has only eight active novel coronavirus cases and no COVID-19 patients in hospital after another day of zero new infections. However, the death toll rose to 22.

Zoom in: A top health official told a briefing a 96-year-old woman "was regarded to having recovered from COVID-19 at the time of her death, and COVID-19 is not recorded as the primary cause of her death on her death certificate." But it was decided to include her in the overall tally of deaths related to the virus.