[ i ] Here’s what we know about B.1.1.7, the U.S.’s dominant coronavirus strain
[ i ] NASA’s Ingenuity helicopter made history by flying on Mars
[ i ] How the laws of physics constrain the size of alien raindrops
[ i ] People with rare blood clots after a COVID-19 jab share an uncommon immune response
[ i ] A new book explores how military funding shaped the science of oceanography
[ i ] 50 years ago, the United States wanted to deflate the helium stockpile
[ i ] Neandertal DNA from cave mud shows two waves of migration across Eurasia
[ i ] Earth sweeps up 5,200 tons of extraterrestrial dust each year
[ i ] Only 3 percent of Earth’s land hasn’t been marred by humans
[ i ] The P.1 coronavirus variant is twice as transmissible as earlier strains
[ i ] ‘Monkeydactyl’ may be the oldest known creature with opposable thumbs
[ i ] A coronavirus epidemic may have hit East Asia about 25,000 years ago
[ i ] ‘First Steps’ shows how bipedalism led humans down a strange evolutionary path
[ i ] STEM’s racial, ethnic and gender gaps are still strikingly large
[ i ] U.S. pauses J&J vaccine rollout after 6 people of 6.8 million get rare blood clots
[ i ] Surprisingly, humans recognize joyful screams faster than fearful screams
[ i ] Wildfires launch microbes into the air. How big of a health risk is that?
[ i ] Discarded COVID-19 PPE such as masks can be deadly to wildlife
[ i ] Corals’ hidden genetic diversity corresponds to distinct lifestyles
[ i ] How researchers can keep birds safe as U.S. wind farms expand