On the night 175 years ago on Sept. 23-24, 1846, astronomers discovered Neptune, the eighth planet orbiting our Sun.
Click here for original story, Discovering Neptune
Source: NASA Image of the Day
On the night 175 years ago on Sept. 23-24, 1846, astronomers discovered Neptune, the eighth planet orbiting our Sun.
Click here for original story, Discovering Neptune
Source: NASA Image of the Day