It may surprise you, but astronomers don't really have a good definition of a "planet". Because ...Read more
Mercury, the planet nearest the Sun, is also the smallest planet in the Solar System. Only ...Read more
Fair but inhospitable Venus, a "Sister" planet to the Earth that is very different from our ...Read more
Earth, our home planet, is a beautiful blue and white ball when seen from space. ...Read more
Mars, Earth's outer neighbor, is the fourth planet from the Sun. Mars' bright appearance and ...Read more
Jupiter is the largest planet in the solar system. When approached from afar, its fantastic ...Read more
Saturn, the sixth planet from the Sun, has the most spectacular set of rings in the solar system. ...Read more
Uranus, the seventh planet from the Sun, has its spin axis almost in the plane of its orbit ...Read more
Neptune, the eighth and furthest planet from the Sun, is a very cold place. Its bluish color ...Read more
In 2006 the International Astronomical Union (IAU) approved a new classification scheme for ...Read more
Did you know?
Do you know who discovered Uranus
Did you know that Pluto is not always outside the orbit of Neptune?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
xTuff : A type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption
Click on the word to find out!
Conservation efforts aimed at protecting endangered Caribbean corals may be overlooking regions where corals are best equipped to evolve in response to global warming and other climate challenges. That's...Read more