The gray sphere is about the size of a bowling ball. It's full of sensors and will allow more electricity to run through the ...

SPHEREx, NASA’s latest astrophysics observatory, has launched aboard a Falcon 9 rocket alongside PUNCH, a mission studying solar wind. SPHEREx will create a 3D map of the universe, helping to uncover ...

A ring or sphere could, apparently, be stable if surrounded by the right sizes and gravities of other stars.

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.