The Princeton-led NASA mission has officially begun its science mission to study the sun and everything it touches. Princeton marked the occasion with a panel discussion, science talks and a reception ...

Gravity has become an unlikely viral villain, blamed for an imagined global blackout in which the planet briefly lets go of everything that is not nailed down. At the same time, some of the most ...

It’s a big universe out there—13.8 billion years old, full of hundreds of billions of star-and-planet-packed galaxies and, out past the limits of our sight, perhaps infinite in all directions. But as ...