IMAGE: An artist’s impression of a free-floating planet. Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world ...

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy. These "free-floating" worlds don't orbit stars, but instead roam the ...

UNDATED (WKRC) - Astronomers recently made an important discovery when they found a rare "in-sync" solar system with six planets all moving in one big grand harmony, completely untouched by outside ...

CAPE CANAVERAL, Fla. — Astronomers have discovered a rare solar system in the Milky Way that boasts six planets orbiting in perfect rhythm like a cosmic orchestra, untouched by outside forces since ...

Tiny crystals in Earth’s crust may have recorded meteorite and comet impacts as our planet traveled through the spiral arms ...

THE SEARCH for other planets in the Milky Way has exploded in the last 25 years. Scientists have moved from mere theories about their existence to proof borne out by years of study of shifting ...

The Milky Way keeps its planets close to its chest. Stars in a thin, flat disk bisecting the galaxy have more planets on average than stars in a thicker, enveloping disk — and astronomers now think ...

(CNN) – Astronomers have discovered a rare family of six planets about 100 light years from Earth. The exo-planets are larger than the Earth but smaller than Neptune. The planets are in a ...