REx, NASA's first asteroid sample return mission, reveals why some gray asteroids reflect light at different wavelengths, ...

The U.S. planetary science community is sounding the alarm about plans to discard a nuclear technology that has powered ...

"One of the things that we're able to do now that wasn't possible in the '70s, when the museum first opened, is to create ...

Scientists studying asteroids found that two seemingly unrelated types share a strange dusty coating of troilite. By using ...

Asteroids have long been described as the leftover pieces from the solar system’s early construction. They are like the ...

Scientists have calculated the odds of a catastrophic asteroid impact compared to other causes of death—to surprising results ...

Neil Armstrong almost made a mistake. He had found an interesting rock sticking out of a formation. Curious to see what the ...

Tucson planetary scientist Faith Vilas is this year’s recipient of the prestigious Gerard P. Kuiper Prize from the American ...

The escape velocity of the meteorite must have been more than 5.03 km/s, an achievement that depends on a combination of impact energy and angle as outlined in recent planetary science studies.

While initial studies and reports indicated that glaciers on Mars were composed mainly of rock and dust, recent planetary ...

As a planetary geologist who works with NASA missions to study Mars, I follow exploration science and policy closely. In 2010, the U.S. National Space Policy set goals for human missions to Mars ...