Cygnus the swan flies tonight. Deneb, the brightest star in the constellation, whose name means “tail” in Arabic, is two ...

Of the more than 5,000 exoplanets that have been confirmed so far and many more thousands of candidates, most orbit stars the ...

We can easily see this “precession” effect with a spinning top. As the top rotates on its axis, it eventually slows down and begins to wobble. The axis about which the top spins no longer points in a ...

In another 55 centuries, the star Alderamin in Cepheus, the king, will occupy that prominent position. And by 14,000 A.D. the bright star Vega will lie closest to the north celestial pole.

You thought the brightest star is Polaris, right? Or one of the stars in Orion? Nope! Sirius—the “Dog Star”—never seems to get the recognition it deserves. It’s the brightest star in the ...

It lies with Pegasus on its left and Cepheus on its right at this time of night. Lacerta is a relatively “young” constellation, first appearing on celestial maps in 1690. Its brightest star ...

By observing the young star HW2 in Cepheus A, located 2,300 light years from Earth, researchers have resolved the structure and dynamics of an accretion disk feeding material to this massive star.