Some Utahns got a glimpse of a real phenomenon Saturday night: a meteor barreling through the Earth's atmosphere — so big that our NASA solar system ambassador called it a fireball.

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

Back in 1986, when the comet last swung through the inner solar system, it lost about 1/1,000th of its mass. Rice said that ...

A celestial spectacle from Halley's Comet will illuminate the night sky this week. Here's how to watch and when to look up.

Despite its dry, dusty surface and thinner atmosphere, Mars may have more in common with Earth than scientists previously ...

NASA analyzed 40 years of satellite data to discover mysterious ninth planet at the edge of our solar system, potentially ...

The Earth started as a mixture of gas and dust around the Sun and grew as it collided with asteroids and dust particles.

Macduff met the Herald this week at the Jupiter basalt marker along the Columbia Park Trail, just east of the blue bridge. It ...

Being about 36,000 km above earth, China's space-based solar power project will generate 100 billion kwh of energy and is ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...