Mars is in opposition through the entire month of January, meaning it will be directly opposite the Sun from Earth and will ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets. Terrestrial planets include Mercury, Venus, Earth ...

"A similar planet in an older system may have a different type of atmosphere or no atmosphere at all," he adds ... "We don’t know if small, terrestrial planets like HD 63433 d have atmospheres, ...

We study the ~4.5 billion year history of the terrestrial planets of our solar system, from the stellar synthesis of the elements of which they comprise through their accretion and re-organisation by ...

These situations allows scientists to investigate the usually hidden interiors of terrestrial worlds. Two teams of astronomers, including the observed planet's discoverers, now intend to join up ...

The Sun’s gravity holds all of these objects together, and the gravitational forces between objects can cause less massive objects to orbit more massive objects. Most terrestrial planets have ...

Because many close-matching simulations had the planet-like object swooping through the inner solar system, the researchers created an additional 10,000 simulations including the terrestrial ...