If you've ever wondered about the origins of Star Trek's United Federation of Planets, check out our handy an explainer about ...

The famed United Federation of Planets was not mentioned on screen until near the very end of Star Trek: The Original Series' ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

Consequently, even though it is one of the closest stars to Earth, such that its light takes only six years to get here, it ...

By Katrina Miller Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard’s Star, the second-nearest star system to Earth. The four planets, each only about 20 ...

Scientists studied the history of our sun and its satellites with all the tools they had, and they used the knowledge they gained to shape our understanding of how planets form and evolve.

United States. The team tracked the movements of iron, sodium and hydrogen, which allowed them to trace winds in the deep, mid and shallow layers of the planet's atmosphere, respectively.

As president of the nearly 200,000-member United Federation of Teachers, Michael Mulgrew has been a player in city politics since 2009. He’s helmed the union comfortably for most of that time ...

Joe Raedle/Getty Images AFT President Randi Weingarten, who has led the union since 2008 following a decade as the president of the United Federation of Teachers in New York, issued the request on ...