On 1995, Baltimore Orioles shortstop Cal Ripken Jr., played his 2,131st consecutive game, breaking the record set in 1939 by ...

On Sept. 8, 1565, the Spanish founded the first continuously inhabited European settlement in what is now the continental ...

The moon and Jupiter will meet before dawn on Sept. 8, before the moon hides the giant planet from view in a rare daytime ...

Looking for a sky event this week? Check out our full Sky This Week column. September 7: Venus and Spica, side by side The ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

The moon and Jupiter will meet before dawn on Sept. 8, before the moon hides the giant planet from view in a rare daytime ...

Joseph DePasquale (STScI), Naomi Rowe-Gurney (NASA-GSFC) Neptune’s tiny moons may be ancient wreckage, preserving material ...

Our satellite joins the Red Planet among the stars of Gemini the Twins, visible before dawn, with Jupiter also on view in ...

The day starts solid and gets brighter from there. The Moon trines disciplined Saturn this morning, helping us follow through ...

As astronomers continue discovering unusual worlds beyond our solar system, many say the question that divided scientists in ...

Look at these photos. Now, look again. How sure are you that what you’re seeing is actually real? What you think you see ...

Astronomers obtain stellar spectra using spectroscopes attached to a telescope. A spectroscope spreads a star’s light into a ...