The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

If the solar system held a poetry slam, each planet would present its unique poetic style. Mercury delivers rapid-fire verses ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

February will be an awe-inspiring month for astronomy enthusiasts who will be able to the see the solar system's planets ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

This provides another piece of the puzzle to understand how planets and ... New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...