MOON

The discovery of the volcanoes on Io is expected to help astronomers understand the processes that shaped the surfaces of planets and moons.

Tidal heating and tidal-rotational deformation made the moon look somewhat like a lemon with a bulge on each side.

July's supermoon is the first of three for the summer.

The first supermoon of the summer is visible on Saturday.

Information about Titan’s building blocks could help researchers better understand how the planet-sized moon might have formed.

The island was spotted in new photos from 2013.

Charon's orbit is not likely to generate significant tides, so any ancient underground ocean would be frozen by now.

Don't expect another full moon on Friday the 13th until 2049.

The 2014 HQ124 is classified as a “potentially hazardous asteroid” based on its size and distance from Earth.

The study suggests remnants of Theia accounts for nearly 40 percent of the moon’s composition while the Earth is responsible for the rest.

"The Beast" will make a close approach to Earth on Thursday.

According to the unvetted story, which ran on CNN's iReport section, NASA scientists put the odds of an impact at 1 in 2.04.

The moon occults Saturn on Wednesday but observers can observe Saturn in the night sky on Tuesday.

An asteroid the size of a school bus passed close to Earth on Saturday.

NASA announced the LADEE spacecraft crashed into the moon on April 18.

Don't worry if you missed Tuesday's blood moon; there will be another one in about six months.

The total lunar eclipse, or blood moon, will take place in the early hours of April 15. The eclipse will begin at approximately 2 a.m. EDT and will peak around 3:45 a.m. EDT.

April's total lunar eclipse and the start of the lunar eclipse tetrad, a set of four eclipses, has led to an "end of days" theory.

NASA is taking advantage of the uncertainty with the "Take the Plunge" challenge.

Planetary scientists have determined that the moon formed nearly 100 million years after the start of the solar system, a new study suggests.

A newly discovered quirk about the mineral apatite challenges long-held theories on how much water is on the moon.