It's the third stabbing incident in the NYC subway system in a little more than 24 hours, and comes amid security concerns in mass transit. In Thursday morning's incident, an MTA cleaner became ...

Breaking its previous record by flying just 3.8 million miles (around 6.1 million kilometers ... associate administrator for NASA's Science Mission Directorate. "By studying the sun up close, we can ...

The trove of data will also help reveal the story of our galaxy’s birth and catalog asteroids and comets in our solar system ... cosmic physics and planetary science. That’s the goal of ...