Mathematicians calculated where the planet might be based on its effects on Uranus, and astronomers searched for less than an ...

There's more than warm power supplies and wonky capacitors Opinion  The Voyager space probes are dear to the hearts of every ...

On September 5, 1977, the power situation was a good deal healthier when the mission got underway. Launched just over two weeks after Voyager 2, Voyager 1 was scheduled to make flybys of Jupiter and ...

NASA's Voyager 1 launched 48 years ago in September 1977 on a decades-spanning journey to study the cosmos and search for ...

Neptune is big, it’s blue, and it is a planet that can tear you apart if you happen to drop into one of its massive, Earth-sized storms. While it might look calm and breathtaking from afar, Neptune is ...

In our solar system, there is a rare celestial alignment that occurs only once every 176 years, during which four giant ...

In this quiz, you'll test your knowledge of Neptune's features, moons, and the science that keeps astronomers fascinated.

That may be about to change: NASA is preparing a brand new mission that will travel 1 million miles away from Earth in order to map the boundaries of the heliosphere, offering clues to scientists ...