For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena thanks to LIGO, the Laser ...

Planck's constant reveals the quantum world's fundamental energy levels. It shows how light and matter exist in discrete units (quanta). This constant defines limits to our knowledge of particle ...

A full moon is slated for Sept. 7, but there are other celestial events occurring this month. More on viewing Saturn at its ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a measure of distance. The confusion arises from the “year” that comes at the ...

"What is remarkable is that the time between pulse pairs seems to follow a choreographed pattern." Using the world's most advanced radio telescopes, astronomers have discovered a spinning dead star so ...