An artist's rendering of DNA. Scientists have found traces of DNA that they say is evidence that prehistoric humans procreated with an unknown hominin group in West Africa.
Paul McKay, a molecular immunologist at the Imperial College School of Medicine in London, checks a dish of bacteria containing genetic material from the new coronavirus. He and his team are testing a candidate vaccine.
Tolga Akmen/AFP via Getty Images
A spoonful of honey makes the medicine...irrelevant. That's because honey works better than cough syrups to help with kids' coughs. But don't give honey to infants under one years old.
Rachen Buosa/Getty Images/EyeEm
Solar Orbiter, seen in this artistic rendering, is a collaboration between the European Space Agency and NASA to study the sun and what drives the solar wind that creates space weather that affects Earth.
In this satellite image handout from National Oceanic and Atmospheric Administration, Hurricane Bill is seen August 19, 2009 in the Atlantic Ocean. Scientists say it generated hundreds of stormquakes along the eastern coast of the United States.
Seismologist Wenyuan Fan explains the accidental discovery — buried deep in seismic and meteorological data — that certain storms over ocean water can cause measurable seismic activity, or 'stormquakes.' He says this phenomenon could help scientists better understand the earth below the sea.
This image from an electron microscope shows a cross-sectional view of an oligodendrocyte (blue) among nerve fibers coated with myelin (dark red). In models of autism spectrum disorder, oligodendrocytes appear to create too much or too little myelin.
Jose Luis Calvo/Science Source
"It's not going to be transported on a box," Dr. Michael Ison, an infectious disease specialist at Northwestern University, says of your chances of contracting the novel coronavirus from packages shipped from China.
Don Emmert/AFP via Getty Images
Making sure to frequently give your hands a thorough scrub — with soap and for about as long as it takes to sing the "Happy Birthday" song a couple of times — can significantly cut your chances of catching the flu or other respiratory virus.
Mandel Ngan/AFP via Getty Images
Worried About Catching The New Coronavirus? In The U.S., Flu Is A Bigger Threat
Scientists say pea-size organoids of human brain tissue may offer a way to study the biological beginnings of a wide range of brain conditions, including autism, bipolar disorder and schizophrenia.
This photo provided by NASA shows the view from NASA's Andrew Morgan's helmet cam as Italian astronaut Luca Parmitano works outside the International Space Station during a spacewalk Saturday.
Roughly 1 in 10 infants were born prematurely in the U.S. in 2018, according to the Centers for Disease Control and Prevention. The drug Makena is widely prescribed to women at high risk of going into labor early, though the latest research suggests the medicine doesn't work.
Luis Davilla/Getty Images
H5N1 bird flu virus is the sort of virus under discussion this week in Bethesda, Md. How animal viruses can acquire the ability to jump into humans and quickly move from person to person is exactly the question that some researchers are trying to answer by manipulating pathogens in the lab.
SPL/Dr. Klaus Boller/Science Source