Latest Protoplanet Stories
Rather than being planetary building blocks, asteroids and meteorites may actually be the byproducts of planetary collisions occurring billions of years ago, according to researchers from MIT and Purdue University.
Planet Mercury has an unusual metal-rich composition which has baffled the scientific community. However, new evidence may have solved this mystery.
Researchers have used three-dimensional computer simulations to reconstruct how an asteroid called Vesta collided with other asteroids twice over a billion years ago to explore the origins of our Solar System.
Scientists are revisiting the age-old question of how Earth's moon formed with the development of two new models that work out the complicated physics of planetary collisions.
Some meteorites found on Earth contain strikingly beautiful, translucent, olive-green crystals embedded in an iron-nickel matrix.
Scientists on Wednesday said they believed they could explain why Mars is smaller than Earth.
NASA's twin STEREO probes are entering a mysterious region of space to look for remains of an ancient planet which once orbited the Sun not far from Earth. If they find anything, it could solve a major puzzle--the origin of the Moon.
In an article to be published in Astronomy & Astrophysics, two British astronomers present new numerical simulations of how planetary systems form. They find that, in the early stages of planetary formation, giant protoplanets migrate inward in lockstep into the central star.