Researchers used a pair of powerful supercomputers to simulate the potential trajectories of 1 million satellites in a ...

Could we prevent in-orbit crashes in the future by using advanced computer models?

Lawrence Livermore National Laboratory creates a cislunar orbit map to help predict satellite stability and improve collision avoidance in increasingly crowded Earth orbits.

On Feb. 20, 1962, Mercury-Atlas 6 mission launched, sending the Friendship 7 capsule containing John Glenn into orbit. Two ...

The coincidence of trends in abundance, metallicity and eccentricity points to two distinct pathways for forming small and large planets. "To see a transition in the eccentricities of the orbits at ...

Planets orbit their parent stars while separated by enormous distances – in our solar system, planets are like grains of sand in a region the size of a football field. The time that planets take to ...

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

For the inner four planets in this solar system, each planet orbits the sun three times for every two orbits of the planet immediately to its outside. For the fourth, fifth and sixth planets, they ...

As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star, or even out of the system altogether. Smaller ...

A newly discovered system of six planets circling a nearby Sun-like star may be the key to unlocking how planetary systems form. All between the size of Earth and Neptune, the worlds are orbiting in a ...