Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a ...

Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary ...

Astronomers have just discovered a new celestial body in our solar system that could challenge major space theory. 2017 OF201 ...

A new telescope project called the Next-Generation Very Large Array will revolutionize radio astronomy if it gets the funding ...

The curious minds at What If explore how the discovery of Kepler 22-b in our solar system would alter everything we know about space and life.

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the ...

A new dwarf planet discovery in the outer solar system is challenging the long-standing theory of a hidden giant planet ...

It is time once again to head to your nearest crosstown view for New York City’s best annual sunsets, if the weather ...

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

China's Tianwen-2 spacecraft is scheduled to launch this week and will study two solar system bodies up close.

In the vast expanse of space, an estimated 1 million near-Earth objects (NEOs), also known as near-Earth asteroids, are ...