Latest from Joel Achenbach

CDC ramps up scrutiny of rare post-vaccination ‘breakthrough infections’

The precise number of these breakthrough cases is unknown, but figures released by states suggest it is at least several thousand.
  • Apr 9, 2021

Signs of life amid signs of concern in the second year of the coronavirus pandemic

U.S. officials warn that now is not the time to relax precautions as variants spread.
  • Mar 25, 2021

After weeks of declining cases, echoes of hot spots emerge in Upper Midwest, New York City area

Michigan has seen a rise in hospitalizations and positive test results. Minnesota’s numbers are creeping up, as are Maryland’s and New Jersey’s. Many places, including New York City and surrounding counties, are no longer seeing steady declines in cases, despite intensive vaccination efforts.
  • Mar 16, 2021

A viral tsunami: How the underestimated coronavirus took over the world

That virus would slowly reveal its secrets — and proceed to shut down much of the planet, killing more than 2.5 million people in the most disruptive global health disaster since the influenza pandemic of 1918.
  • Mar 9, 2021

New research shows California coronavirus variant is more transmissible

As national cases and deaths decline quickly, variants continue to be a wild card.
  • Feb 24, 2021

Biden honors covid-19 victims amid staggering toll, signs of hope

As the U.S. death toll from the coronavirus hits 500,000, some trends hint at a better road ahead. But as the president holds a solemn memorial, the White House is wary of touting good news prematurely.
  • Feb 22, 2021

NASA rover Perseverance lands on Mars in mission to search for past life

The mission is an international endeavor. The Perseverance rover’s instruments are operated by scientists in three countries, and the Mars Sample Return program is a partnership with the European Space Agency.
  • Feb 18, 2021

A mass-casualty event every day

One person in the United States died of the coronavirus every 28 seconds in January. The Washington Post spent three days with people closest to the terrible toll of the pandemic’s deadliest month.
  • Feb 18, 2021
  • Post Reports

The lone grid state

Understanding the freezing weather sweeping across the United States — and why Texas’s independent power grid was doomed to fail in its wake. Plus, NASA tries to land a car on Mars.
  • Feb 17, 2021

NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life

Hitting the 4.8-mile-wide landing site targeted by NASA after a journey of 300 million miles is akin to throwing a dart from the White House and scoring a bull's eye in Dallas.
  • Feb 16, 2021