On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this figure-of-eight pattern. But on other planets, with their own orbits and mean solar ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of ...

the planets are estimated to be between one and seven times as massive as Jupiter, and both orbit small, dead stars at ...

A: The summer solstice in the Northern Hemisphere ranges in date from June 20 to 22. This occurs in part because of the ...