There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

Astronomers observe for the first time the actual motion of spirals in a protoplanetary disk, revealing gravitational ...

We thought we understood planets, but the planetary disk chemistry of far-away XUE 10 is completely changing our conception ...

This is peculiar, but it is not the first marshmallow planet discovered. Others have sported this extreme low density. What's ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

Students for the Exploration and Development of Space (SEDS) is more than just a club for students who are passionate about ...