The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, ...

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The question of whether Earth is alone in harboring life has captivated humanity for millennia. In recent years, scientists ...

The Earth could be soon flung out of orbit or into the sun - all thanks to a passing star - Either way, the sun is likely slated to consume Earth in billions of years ...

For planets with more exaggerated eccentricities, the changing distance can have a bigger impact. Sunlight on Mars, for example, can vary as much as 31 percent along its orbit.

Sky-watchers will get a rare chance to see all the major planets in our solar system bunched together—with the moon joining the festivities, too, from June 17 to June 27.