This story appears in the July 2013 issue of National Geographic magazine ... unaltered material that everything formed from in the solar system.” Comet DustIn a NASA clean room a scientist ...

Though costly to implement, solar energy offers a clean, renewable source of power. 3 min read Solar energy is the technology used to harness the sun's energy and make it useable. As of 2011 ...

Test Your Solar System Smarts From white dwarfs to space junk, our solar system is filled with mysterious and often mind-blowing phenomena. Do you know asteroids from meteoroids and Venus from ...

With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system ... in the March 2019 issue of National Geographic magazine.

Astronomers have discovered an exoplanet that might have favorable conditions for liquid water. This planet, HD 20794 d, ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

Is there a 9th planet out there? We may soon find out. Earth is a geological oddball in our solar system. This is why. Earth is a geological oddball in our solar system. This is why. How to see ...