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.
April has plenty of astronomy events to look forward to, including a total lunar eclipse, but "zero gravity day" won't be among the actual events.
The comet's nucleus is surrounded by a glowing dust cloud, or coma, which measures about 12,000 miles across.
In a rare event, a 45-mile wide asteroid will "black out" the incredibly bright star Regulus. The live stream begins at 1:45 a.m. EDT on March 20.
A full-size printout of the entire mosaic would require a sheet of paper wider than a professional U.S. football field.
Planetary scientists believe they have spotted waves on Saturn's largest moon.
One of the brightest stars in the sky will briefly dim, in a process known as occultation.
A new study shows the value of "citizen scientists" in research.
An asteroid called is scheduled to make a pass by Earth on Wednesday. Watch the live stream of the near-Earth encounter here.
Most know that a leap year occurs every four years. But here's a little history about the curiously inconsistent day of February 29th.
Astronomers observed a record-breaking lunar impact on Sept. 11, 2013.