PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

Fantastic beaches, fiery volcanoes, hula dancers and a warm aloha welcome are just some of the reasons to love Hawaii and its fascinating mix of Polynesian, Asian and American culture. Most visitors ...

There are two environmental campsites that are among the most coveted in the California State Park system—perched on a bluff overlooking the ocean with views of McWay Falls. These sites book up six ...

The U.S. military is suspending its efforts to secure a small Pacific island as the test landing site for a new program using ...

Skies should stay mostly clear with light southerly breezes this evening calming down after midnight. Lows get near 65, plus or minus a few degrees. Confidence: High Tomorrow (Sunday): Mostly sunny ...

With more Dark Sky Places than anywhere else in the world, Utah’s high deserts are giving visitors front-row seats to the ...

From that point on, Hasselblad cameras flew on every Mercury, Gemini and Apollo mission, including the unforgettable Apollo 11 moon landing. But these weren't off-the-shelf models. Together, NASA and ...

While "Jaws" made people fear sharks, it's predatory humans — such as those in Mexico's shark fin trade — that sharks should ...