Astrophysicists have once again enriched our knowledge of the cosmos with a new discovery: two small planets orbiting ...

You can expect to see seven planets align Friday when Mercury joins Mars, Jupiter, Uranus, Neptune, Venus and Saturn ... The planets orbit the sun continuously in the solar system, so at times ...

LTT 9779 b, an ultra-hot Neptune, is defying expectations. With temperatures soaring to nearly 2,000°C and a tidally locked ...

This happens because the planets in our solar system essentially orbit the sun along the same line across a ... high-powered ...

The objects around the ringed planet are tiny, but some of them may have formed relatively recently in the solar system’s ...

An alignment of seven planets will appear, whether by the naked eye or with the use of a telescope, this month in the U.S. Here's how to spot it.

James Webb found LTT 9779 b, a Neptune-like exoplanet with 2,000°C heat, extreme winds, and evaporating clouds—challenging ...

Planets change orbit shape around Neptune’s size. Metal-rich stars help giant planets form. Eccentric orbits suggest chaotic planet formation.

The phenomenon known as a planetary parade is back as astronomers and stargazers prepare for what could be a dazzling display in the solar system, so if you missed January's, here's your chance.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

The planet Neptune wobbled in its orbit around the Sun. That could only mean one thing, astronomers said: There was a ninth planet out there, somewhere, lurking in the fringes of the solar system.