Three weeks before the April 8 total eclipse crosses North America, astrophysicist Nour Raouafi turned toward a large eclipse image behind him showing the sun's wispy white corona streaming around a ...

For the millions of people across North America who will be treated to a total solar eclipse on April 8, it will be spectacular show — a chance to see the moon fully obscure the sun’s face. But for ...

NASA is looking into propulsion problems experienced by a probe on its way to orbit the asteroid Psyche.… The Psyche mission uses solar electric propulsion to generate thrust using charged atoms of ...