An illustration of the hot Jupiter HD 189733 b don't be fooled by its placid marble like appearance . | Credit: NASA/ Robert Lea (Created with Canva) Using the James Webb Space Telescope (JWST), ...

WASHINGTON (Reuters) - Jupiter, the solar system's largest planet, may have been smacked head-on by an embryonic planet 10 times Earth's mass not long after being formed, a monumental crash with ...

The first planet ever found orbiting another star was detected in 1995, and it belonged to a class now known as a “hot Jupiter.” These exoplanets are comparable in mass to Jupiter but circle their ...

Planetary scientists have long wondered why Mars is only about half the size and one-tenth the mass of Earth. As next-door neighbors in the inner solar system, probably formed about the same time, why ...

A newly discovered exoplanet more than 1,200 light-years from Earth has three times the mass of Jupiter and is the new "king" of its solar system. Known as Kepler-88 d, it replaces Kepler-88 c as the ...

Gravitational microlensing is the only method capable of exploring the entire population of free-floating planets down to Mars-mass objects, because the microlensing signal does not depend on the ...

CINCINNATI (WKRC) - Astronomers discovered a free-floating rogue planet with a mass 10 times heavier than Jupiter, and it's growing at an unprecedented rate. The rogue planet, named as such because it ...

Like an ambiguous game of telephone, messages get lost in translation when Mercury squares Jupiter, and no one’s quite sure ...

Jupiter makes its closest approach on January 9, just 393 million miles away, shortly before reaching its opposition on January 10.

Previously, planets have been detected only in the Milky Way galaxy. Researchers show that quasar microlensing provides a means to probe extragalactic planets in the lens galaxy, by studying the ...