GRAIL-A spacecraft achieved Lunar Orbit Insertion on New Year’s Eve.
Artists concept shows twin GRAIL spacecraft orbiting the Moon. The twin GRAIL spacecraft will fly in tandem to map the moon’s gravity field with unprecedented precision to unlock hidden secrets about the moons interior composition, determine if it possesses an inner core, and yield a better understanding of how Earth and other rocky planets in the solar system formed. Credit: NASA
The year of exoplanets. The Kepler space observatory to discover Earth-like planets orbiting other stars. The spacecraft, named in honor of the 17th-century German astronomer Johannes Kepler,was launched in March 2009.
This artist’s conception illustrates Kepler-22b, a planet known to comfortably circle in the habitable zone of a sun-like star. It is the first planet that NASA’s Kepler mission has confirmed to orbit in a star’s habitable zone — the region around a star where liquid water, a requirement for life on Earth, could persist…