8 million miles above the Sun's surface on December 24, 2024, traveling at an incredible 430,000 miles per hour - faster than any human-made object has ever moved. The spacecraft safely completed this ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...