Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in the northern ...

Jupiter and Venus will appear closest over Aug. 11-12, according to NASA, appearing as if they’re “grazing” each other ...

Skywatchers are in for a rare treat this August as six planets align in a stunning arc across the night sky. This planetary ...

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

Hidden secrets of the outer solar system -- 12. The plutinos -- 13. Is Pluto a planet? -- 14. Goldilocks -- Postscript. Current thoughts by other astronomers -- Appendix. What we know about Pluto Date ...

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

The Sun and planets of our solar system all formed from the same cloud of gas and dust, but the planets’ compositions vary with mass and distance from our star. This illustration shows the ...