Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

With an assist from the NEID spectrograph, a team of astronomers have confirmed the existence of exoplanet Gaia-4b—one of the ...

Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

A planet that may support alien life has been discovered less than 20 light-years away from Earth - and it's believed to house water too, according to the research team that found it ...

HD 20794d orbits its star with two other super-Earth planets, designated b and c ... The degree of elongation, known as eccentricity, is measured on a scale of 0 (for a perfect circle) to 1 (a ...

Or, for those who remember vinyl records, think of the grooves around the central hub as the planets' orbits. Earth’s orbit lies in that same plane, so from our perspective, we cannot see the ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...