Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

See dazzling planets, the Milky Way and a trio of celestial animals brightening the spring sky around May's new moon.

A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to ...

Images of the crescent Moon's meeting with Venus and Jupiter ...

Venus, Jupiter and Mercury headline May's skywatching, with stunning moon pairings and a three-planet display.

Becca Caroline explains that scientists have discovered that the planet, TRAPPIST-1e, exists in the habitable zone around its sun. The adjective habitable describes a place or habitat that is suitable ...

The Qatar Calendar House announced that Venus, the brightest planet in our solar system, will reach its closest point to the ...

While Galileo's observations killed off the old model, we would need to wait centuries for conclusive evidence that Earth revolves around the Sun.

Inside the core, particles collide and release incredible amounts of energy, which radiate out from the Sun in the form of light – a process called nuclear fusion. The light travels outward towards ...

The sun rose on one Alaskan town on Sunday, and it won’t set again for three months. The midnight sun rose in Utqiaġvik, Alaska (formerly Barrow), the northernmost village above the Arctic Circle and ...