Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s ...

The main working hypothesis for the Mercury problem says that the planet is the victim of a collision with a different-sized object. The cataclysmic collision stripped much of the planet's mantle and ...

NASA planetary defence experts simulate catastrophic asteroid impact scenarios with a 72% Earth strike probability, as ESA's ...

Caltech researchers have developed a new simulation of the hydrological cycle on Jupiter, modeling how water vapor condenses ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Chrysalis, a 36-mile rotating space habitat, plans to take 2,400 people to Alpha Centauri in approximately 400 years.

3I Atlas is a newly discovered interstellar comet traveling through our solar system at a record breaking speed of about 209,000 km/h, making it the fastest of its kind ever observed. Unlike comets ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

LAS VEGAS — When Las Vegas resident Gary Jensen chose to get rooftop solar earlier this year, his goal was to save money and help the environment. Now six months later, his rooftop has solar panels ...

Coal and utility-scale solar power each gained market share in the first half of this year, newly released data on U.S. electricity generation show. Natural gas, while still the market leader, lost ...

Japanese electronics manufacturer Panasonic announced it is currently testing a new energy management system (EMS) that helps increase residential PV self-consumption by combining solar energy ...