Science

AstraZeneca COVID-19 vaccine study paused after one illness
Late-stage studies of AstraZeneca's COVID-19 vaccine candidate are on temporary hold while the company investigates if a report of a patient with a serious side effect is linked to the shot.
Flu season looms and scientists wonder how flu and COVID-19 might mix
There's a lot scientists don't know about how viral infections can interact. But researchers are eager to figure out how COVID-19 infections might affect flu infections and vice versa.
Why the coronavirus is so 'superspready'
That's the word that one disease researcher uses to describe COVID-19. And now scientists are discovering the reasons that this virus is readily transmitted at "superspreader events."
Tiny elephant shrew resurfaces after more than 50 years on 'lost species' list
The mouse-sized Somali sengi — a kind of elephant shrew with a pointy nose and large, adorable eyes — was thought to be a lost species. It was recently spotted by researchers in Djibouti.
13 states make contact tracing data public. Here's what they're learning
The information includes details on where transmission is happening most. If more states shared this widely, it could shape policy and save lives, health researchers say.
Perseid meteor shower peaks after midnight. NASA says it's 'one of the best'
The light of the moon will reduce the visibility of some fainter meteors, but NASA says it's still worth staying up late — or rising very very early on Wednesday — to see "nature's fireworks."