Watch 7:38
What we know about the search for a COVID-19 vaccine — and what we don’t
The question of when a COVID-19 vaccine might be available is perhaps the most pressing in the world. There have been a number of recent headlines on this front, including early but encouraging results from trials. And on Wednesday, the…
Watch 7:21
Companies race to mine lithium, a battery essential
The metal lithium has become integral to our daily lives, due to its essential role as a battery material in electronic devices. Over the next several decades, the rising popularity of electric vehicles is expected to mean the demand for…
Watch 8:10
How doctors are innovating to treat COVID-19
One of the reasons COVID-19 presents such a significant global medical challenge is that there are few effective therapies for it so far. As cases fill hospital beds across many parts of the country, doctors and scientists are coming up…
Watch 8:23
What computer-based models can tell us about coronavirus — and what they can’t
For months, scientists and public officials have relied upon computer-based models to try to predict the trajectory or the coronavirus outbreak. But models are not crystal balls, and all of them involve human assumptions. Science correspondent Miles O’Brien reports on…
Since the coronavirus pandemic gripped the United States, Americans have been told to avoid emergency rooms and hospitals if possible. But now there are reports from across the country that suggest the warning may be in fact too effective, as…
Testing, both for active cases of COVID-19 and for antibodies indicating prior exposure to the disease, will be critical to resuming economic activity. In addition, scientists are racing to develop therapies for people who do get infected -- especially those…
Migraine disease affects 47 million Americans -- 75 percent of whom are women. Although headache is one symptom, attacks can include visual disturbances, nausea, extreme light and sound sensitivity, brain fog and debilitating pain. Stigma and gender stereotypes may complicate…
Bushfires are still burning in parts of Australia. So far this season, they have claimed the lives of more than 30 people and destroyed tens of millions of acres of land. The ensuing toll on forest and wildlife has prompted…
A black hole is a cosmic abyss with gravity of such intensity that nothing, not even light, escapes it. Now, for the first time, a team of astronomers has released an image of the space anomaly, which is created when…
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