The Great Opportunities of the Galileo Satellite Navigation
More than 2,000 satellites are orbiting the Earth at this very moment. They are used for communication and many other purposes. This article covers different aspects of satellite uses in navigation, with a strong emphasis on navigation. Then it looks into the Galileo Satellite Navigation System.
Astronomy Picture of the Week – Venus: Earth’s Cloudy Twin
This picture of cloudy Venus wast taken by the Galileo spacecraft. Venus is very similar to Earth in size and mass, so it is sometimes referred to as Earth’s sister or twin planet, but the resemblance ends there. Venus is the most hellish planet in the solar system. It has thick clouds and is much closer to the Sun which makes it the hottest planet. Venus is usually the brightest object in the sky after the Sun and the Moon, but it can only be seen just after sunset or right before sunrise. Image Credit: Galileo Spacecraft, JPL, NASA.
Astronomy Picture of the Week – Io Moon Of Jupiter
Io is the most volcanically active body in the solar system. It is the innermost of Jupiter's four major moons also known as the Galilean moons, named after their discoverer. Io's surface is constantly under construction. The volcanic eruptions quickly reshape every part of the moon's crust, so that a map of Io wouldn't stay accurate for quite long.
