An image that was taken last week by one of the National Aeronautics and Space Administration's two robotic roving laboratories currently exploring the Martian landscape appears to show an artificial light radiating outward from the planet's surface.

Although the space agency hasn't issued any statement about the phenomenon, bloggers and NASA watchers have posted their many cents about what is seen in the photo, which was transmitted over millions of miles of space before being received by the Jet Propulsion Laboratory in Pasadena, Calif., according to a story in the Houston Chronicle.

On April 6, Scott C. Waring, who maintains the website UFO Sightings Daily, posted the picture, which he says depicts a light shining upward from a flat surface at or below the ground.

"This could indicate there is intelligent life below the ground and uses light as we do," Waring wrote on his website. "This is not a glare from the sun, nor is it an artifact of the photo process."

The Curiosity rover arrived at "the Kimberley," a spot where it can study rock clues about ancient environments that might have been favorable for life, according to an April 2 NASA news release.

Four different types of rock come together at the Kimberley, which is named for a region of western Australia where the ancient, steep-sided mountain ranges of northwestern Australia are cut through by gorges of sandstone and limestone.

"This is the spot on the map we've been headed for, on a little rise that gives us a great view for context imaging of the outcrops at the Kimberley," the Curiosity mission's Melissa Rice, of the California Institute of Technology in Pasadena, said in the release.

Rice is the scientist responsible for planning several weeks of observations, sample-drilling and on-site analyses of the area's rocks.

Curiosity has driven 3.8 miles since August 2012, when it landed inside Mars' Gale Crater.