Solar System

For over a century astronomers have speculated that comets could have delivered organic molecules necessary for life to Earth, but new modeling shows these molecules wouldn't have survived impact.

The lopsided magnetic fields of Uranus and Neptune could be the product of extreme conditions inside the planets, increasing the electrical conductivity that enhances the dynamo effect.

NASA's Curiosity Mars rover is sizing up its next dig site on the Red Planet. The Curiosity team will characterize the surface composition of "Nazca" as thoroughly as possible before drilling.

NASA's twin ESCAPADE spacecraft are wrapping up a year-long voyage to Mars, and are now ready to make a beeline to the Red Planet.

A 4.1-billion-year-old meteorite discovered in the Sahara Desert offers a rare glimpse into Mars' early history.

Earth has caught itself a new mini-moon, and QQ8 is sticking around for Christmas.

China has laid out its roadmap for landing astronauts on the moon "before 2030," a milestone that NASA hopes to achieve in 2028.

Scientists have long suspected that Mars is geologically "dead" but new spacecraft observations suggests the Red Planet's volcanoes are merely sleeping.

The findings are another clue towards understanding the origins of 3I/ATLAS and the planet-forming conditions around other stars.