The Gaia space telescope has measured the acceleration of the Solar System when it orbits the center of our Milky Way galaxy. The Solar System motion relative to the stars agrees with the results by ...

Jupiter reaches stationary point, appears to reverse tonight. This retrograde motion is a common celestial illusion. Jupiter will reappear in the morning sky by mid-August. Did our AI summary help?

Widespread magnetism dating from our solar system’s earliest beginnings some 4.57 billion years ago likely played a major role in creating orbital order out of chaos. But until now, magnetism’s role ...

When you gaze up at the constellation Hercules, you are looking out the front window of the spacecraft called Earth. Our planet is hurtling at some 45,000 mph (72,000 km/h) toward the star Lambda (λ) ...

Finding Earth’s exact position in the galaxy took centuries of observation and innovation. This story follows astronomers as they counted stars, measured motion, and mapped the Milky Way with ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...