But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

Mark your calendar so you can catch Mercury, Venus, Jupiter, Saturn, Neptune and Uranus in the sky at the same time.

These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, ...

How do tidal forces shape a planet's orbital evolution, especially for those in the habitable zone? A recently submitted ...

In recent years, JWST has revealed a fascinating class of never-before-seen objects, just hanging out in crowded, nebular ...

Five planets are currently visible from Earth at the same time, in what’s known as a planet parade – or a planetary alignment ...

NASA’s James Webb Space Telescope finds TRAPPIST-1 d lacks an Earth-like atmosphere, narrowing the search for habitable planets.

Prior to flybys, scientists used mathematical laws and observation to determine the characteristics of the planets.

While many of the planets are already shining in the early sky, the best mornings to see the parade are Monday (August 18) ...

While most of the planets will be visible to the naked eye, others will require special equipment to be spotted.