More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of wider human settlements around Jupiter.

Though Ganymede’s ordeal struck me as nothing short of horrific, a crasser part of me jumped at the opportunity: a gritty retelling, I thought, practically wrote itself. But to pen the definitive ...

What is the moon phase today? Today, Feb. 13, 2025, the moon is 15 days old and is in the Full Moon phase of its lunar cycle. It is 99% illuminated. Moon phases reveal the passage of time in the ...

Here are the dates for the full moons in 2025. The next full moon will be on Friday, March 14, 2025. It will officially reach its full moon phase at 2:55 a.m. EDT (0755 GMT) but local moonrise ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

Today: On Feb. 18, 1930, Clyde Tombaugh discovered Pluto, at that time classified as the ninth planet. However, as astronomers started discovering a lot of similar objects in that part of the ...