Christina Smedley, who has previously worked at Amazon, PayPal, Facebook, and Robinhood, discusses her current role at Lightspark where she's helping to revolutionize payments through Bitcoin's ...

India's first sun-studying spacecraft, Aditya-L1, has captured one of our star's fiery outbursts in new detail. From its vantage point about 1 million miles (1.5 million kilometers) from Earth ...