The story of Earth’s atmospheric oxygenation is one of transformation, shaped by both biological and planetary forces. While ...

Therefore, astronomers might expect that all of the planets in the solar system would spin in the same direction as the sun. "To look at the direction of the rotation, we always compare it to a ...

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

Not every planet has a moon — so why ... moons formed at the same time as their solar system. Solar systems start out with a big disk of gas rotating around a sun. As the gas rotates around ...

Collapsed dead stars, known as neutron stars, are a trillion times denser than lead, and their surface features are largely ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a ...

Using computer models, researchers studying Pluto and its moon, Charon, have discovered an unforeseen kind of cosmic ...

Timing: Dusk after sunset, but before 9 p.m. local time There are eight planets in our solar system and one dwarf planet (Pluto). Because we live on Earth, the most we could see is a maximum of ...