The United States government has begun the first clinical testing of an experimental vaccine designed to guard against Zika virus.
Solar cells have been around since the 1950s.
People in the western United States could not believe their eyes Wednesday night when, high in the sky, a bright streak of light appeared.
For the first time, a solar-powered airplane has completed a trip around the world.
Almost every day, we hear about a new development in the world of driverless technology. But how will this technology change our lives when cars no longer need humans to drive them?
Leaders of the al-Qaida and Islamic State terrorist groups have been urging followers in Western nations to carry out attacks with whatever weapon is available — including a knife, a car or a fist.
People on social media have been accusing the American space agency, NASA, of shutting off its live video from the International Space Station.
There is big news about the environment: Scientists say a hole in Earth’s protective ozone layer is starting to heal.
Water, the saying goes, will find its way.
In New York City right now, workers are removing pay phones from the city’s streets.