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

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 planet twice the size of Jupiter has been confirmed in Nu Octantis. Its retrograde orbit and origin raise new questions about planetary formation in binary systems.

Planets with unusually wide orbits may be normal by-products of the formation of planetary systems. This is suggested by new simulations.

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

Located 15,000 light-years away in a region of the Milky Way brimming with stars, gas and dust, this object could be a highly ...

In the dark realms of space, about 14,700 light-years away, an unusual object is doing something unexpected. And it's leaving ...

The mystery object, known as ASKAP J1832- 0911, is located within the Milky Way about 15,000 light-years away from Earth.

Cheng, together with graduate students from Princeton University, discovered the potential dwarf planet while searching for ...

Astronomers confirm the existence of small, hot and likely rocky planets by observing the subtle gravitational wobbles of the star they orbit Researchers supported by the U.S. National Science ...