Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path. One kept a magnetic field against the odds. Another trapped so much heat ...

NEW YORK (AP) — Six planets are linking up in the sky at the end of February, and most will be visible to the naked eye. It’s what’s known as a planetary parade, which happens when multiple planets ...

Some planets, including Venus and Mercury, will be visible to the naked eye, though telescopes or binoculars can enhance the view.

Add Yahoo as a preferred source to see more of our stories on Google. Former NASA astronaut Scott Kelly snapped this photo of the Earth’s crescent, the Moon, Venus, and Jupiter (from top to bottom) in ...

In this HiRISE image of Mars, many sand dunes are visible. They have an elongated crescent form and are called "barchan dunes." They are formed by the continuous action of the wind, blowing in the ...

Four planets visible to the naked eye are lining up across the western sky after sunset this week, and the window to see them at their best is closing fast. Venus, Mercury, Saturn, and Jupiter form a ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...

Look west after sunset on March 19 to try spotting a razor-thin crescent moon less than 24 hours old with brilliant Venus ...

NASA has not reestablished contact with its MAVEN Mars orbiter since a planned communications blackout ended Jan. 16.