Six galaxies with more than 50 different planets await him.In the style of a classic jump ’n' run game, Astro runs through the various levels of the planetary systems, overcoming obstacles, looking ...

With an equatorial diameter of 7926 miles (12,760 kilometers), our planet Earth is the biggest of the terrestrial planets and ...

The U.S. space agency said the probability of Asteroid 2024 YR4 hitting the Earth in 2032 has grown to 3.1%, or a 1-in-32 chance. Earlier in January, NASA had put the chance of the asteroid impacting ...

The threat from space rock 2024 YR4 has surpassed that of Apophis, an asteroid feared by scientists 20 years ago. The danger remains low, but experts are estimating the damage that could be done.

Updates on Asteroid 2024 YR4 have been slower during the full Moon, but experts say the precision of the object’s orbit is ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

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

Astronomers have peered through the atmosphere of a planet beyond the Solar System, mapping its 3D structure for the first time. By combining all four telescope units of the European Southern ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

According to a NASA blog post from earlier this month, the asteroid is estimated to be approximately 130 feet to 300 feet in ...

High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...