"The Solar Family" is an 11-minute educational film produced by Encyclopedia Britannica Films in 1936. It presents the evolution of the solar system through the lens of the planetesimal hypothesis ...

Astronomers See Planet Formation ‘Time Zero’ in an Alien Solar System Observations of a baby star may show the earliest stages of planet formation that astronomers have ever seen ...

Previously, this phenomenon hadn’t been witnessed directly, and meteorites were the only source for information about the early formation of our Solar System.

HOPS-315 is also giving astronomers a new opportunity to study early planet formation, serving as a stand-in for newborn solar systems across the galaxy.

The massive planet LHS 3154b orbits a star much smaller than Earth's sun, and its discovery could upend everything we think we know about how solar systems form.

The universe doesn't come with an instruction manual—but if it did, University of Missouri Assistant Professor Charles Steinhardt suspects a few pages are missing. Either the universe has been ...

The size of the solar system is defined by the volume of space over which the sun’s influence exceeds those of other nearby stars in the Milky Way galaxy.

Astronomers Witness an Alien Solar System’s Birth for the First Time Observations of a baby star may show the earliest stages of planet formation that astronomers have ever seen ...