The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers this week confirmed the discovery of an interstellar object racing through our Solar System – only the third ever ...

Let’s learn about Capella. It is the fourth brightest star we can see in Ellensburg. It is the brightest northerly star. It ...

Interstellar comets offer the tantalizing opportunity for us to touch something truly otherworldly,” says the European Space ...

Folks, it's official: the object that astronomers recently spotted blowing through the outer solar system came from ...

As lightning strikes across the world, some scientists wonder if it plays a hidden role in Earth’s energy balance, hinting that these powerful flashes could be nature’s way of resetting atmospheric ...

This emission is strongest under conditions which are intermediate between those in the interior of nebula and those in the dense cloud.

NASA's New Horizons spacecraft has successfully conducted the first-ever deep space stellar navigation test, while traversing the Kuiper Belt.