"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." ...

The observations offer a unique glimpse into the inner workings of an emerging planetary system, said the University of ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

These incredible images reveal the exact moment when planets began to form around a star 1,300 light-years from Earth.

For the first time, international researchers have pinpointed the moment when planets began to form around a star beyond the ...

But scientists now say that Uranus is actually warmed from the inside, according to a study published in Geophysical Research ...

The researchers used the James Webb Space Telescope to probe the chemical make-up of material around the star, and found the ...