The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

AN alien world “suffers star-grazing torture” every 111 days as its fiery sun boils the planet to a hellish 1,093C. This ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Staring up at the night sky, you might see thousands of stars sprinkled above the horizon. It feels as though you can see so ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...

Early 2025 is a good time for skygazing and spotting up to seven planets in the night sky – if you have a little help.

Named HD 20794 D, the newly discovered exoplanet orbits a star similar to the Sun, and researchers believe it may be able to ...

The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.