Our solar system is a particularly crowded place. Millions of objects move within it, whether they are planets, moons, comets, or asteroids. And every year, we discover more and more objects (usually ...

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed predicted by standard cosmology. Using highly sensitive data from multiple ...

In the distant space out beyond the orbit of Jupiter lurks a strange object. Its name is Chiron, a type of outer Solar System body known as a centaur. But even among its fellow centaurs, Chiron is ...

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 ...

Since the 1950s, scientists have known that the Sun emits a stream of particles in a vast wind, carrying away an Earth’s worth of mass every 150 years. This wind of protons sweeps by comets and ...

Only two other confirmed interstellar visitors have ever been spotted before now: Comet 2I/Borisov, which was seen shooting through the solar system in 2019; and 'Oumuamua, a cigar-shaped object that ...

Our solar system is a weird place. Much more than a home to eight planets, it’s filled with a myriad of fascinating other smaller bodies, including moons, asteroids, and comets. In recent decades, ...

In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, where he introduced the concept of the "universal constructor." The theory ...

There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, temperature, and characteristics. The planets can be ...

The Kuiper belt, a disc of icy rocks on the outermost edges of the solar system, seems to have more structure than we thought. In 2011, researchers found a cluster of objects there on similar orbits ...