Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Around a Sun-like star just 1,300 light-years away, a family of planets has been seen in its earliest moments of conception.

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away.

The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one day resemble our own.