NEW YORK (AP) — Seven planets grace the sky at the end of February in what’s known as a planetary parade, though some will be ...

While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye.

The Milky Way's tidal forces may be shaping the Oort Cloud's inner structure into a spiral shape.

An international research team led by the University of Vienna has discovered that the Solar System traversed the Orion ...

Astronomers have discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million years ago. This journey ...

The edge of the Solar System is a strange place, full of oddities we've only just begun to probe. But perhaps the oddest of ...

A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, ...

The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.

The giant cloud of detritus is thought to be the source of strange comets and meteorites flying past Earth such as the mysterious cigar-shaped rock known as Oumuamua that was spotted in October 2017.

A star racing through the Milky Way may have a planet in tow, setting a new speed record for exoplanet systems. Using ...

Astronomers have peered into an alien planet's atmosphere and found extreme weather unlike anything in the solar system.

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...