Our own planet represents a tiny fraction of the peculiar phenomena that can be found lurking throughout the cosmos, and ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Astronomers didn’t even know sub-Neptunes existed until NASA’s Kepler mission uncovered them over the past decade. Although a ...

The Universe’s Strangest Star came into the spotlight ... and periodic brightness changes due to factors like orbiting ...

And it had traveled from somewhere far beyond our galaxy.

Planet K2-18b is in the same galaxy as us – the Milky Way – but there are billions to trillions of estimated galaxies in the universe. The academic stressed that we've only sampled a 'tiny ...

It is rare to find brown dwarf stars orbiting in pairs, and this pair has an even more unusual exoplanet companion ...