Long before the full moon rises, shifting sunlight transforms the lunar surface into one of the sky's best telescope targets.

Here's when to see a pair of massive letters shining on the lunar surface around May's first quarter moon phase.

The first color image of the whole Earth prompted people to think of home, and the environment, in a new way, writes Stewart Brand.

Venus and Jupiter remain visible in the evening sky soon after sunset early in July, although Jupiter fairly quickly drops ...

A crater that never sees sunlight might sound like the wrong place to build delicate scientific equipment. Jun Ye sees it ...

Looking for a sky event this week? Check out our full Sky This Week column. May 21: Check in on Saturn and Mars Tonight we're ...

Bishop Museum, the State of Hawaiʻi Museum of Natural and Cultural History, shares news of two astronomical phenomena ...

More than 80 years after Alfred Hitchcock filmed “Shadow of a Doubt” in Santa Rosa, the thriller remains both a landmark of ...

And once people have a chance to know what bears are really like, it changes their whole perspective.” Holly Kays is the lead ...

More than half a century from today, on May 11, 2078, a total solar eclipse will darken part of Texas in the middle of the ...

The CIA secretly intercepted a Soviet Luna spacecraft in transit and examined it overnight. The agency said the operation ...