Rare "in-sync" solar system discovered by scientists 04:12. Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

This diagram shows the orbital distribution of extrasolar planets smaller than Jupiter that have been detected by the Kepler mission, in comparison to the orbits of Mercury, Venus, Earth, and Mars.

For comparison, the full moon is about 30 arcminutes wide in the sky - roughly the size of a small coin held at arm's length. ... Currently, our solar system recognizes 8 planets, ...

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

For years, scientists have puzzled over why Earth and Mars are missing certain key elements. Now, a fresh study suggests ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

Siraj and his co-authors were able to compare 51 objects in the solar system. A previous work had only been able to compare 11. They found that the perimeters for this possible planet were different ...

Does our solar system have a new dwarf planet? ... If confirmed, that size would make it the second largest known TNO. As a comparison, Pluto’s diameter is 1,477 miles (2,377 km).

It is the fastest wind ever measured in a jetstream that goes around a planet. In comparison, the fastest wind ever measured in the Solar System was found on Neptune, moving at 'only' 0.5 km per ...