The discovery of a new celestial object in the Earth's neighborhood has created a buzz online asking whether the planet now has a second moon in its orbit. Any thoughts that Earth is now going to ...

The other two known interstellar comets did not offer such an opportunity.

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Amateur astronomers and stargazers on Staten Island and the New York metropolitan area will have an excellent opportunity to observe Jupiter at its closest approach to Earth on Jan. 9. During this ...

Humans are captivated by the idea of finding life elsewhere in the universe – and even more by the idea that life, if found, might resemble the complex, animal life here on Earth. One of the easiest ...