Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet.

The universe is full of oddities and formations that range from magnetars to solar systems with four stars. One of those oddities is the stellar trio, where two stars orbit each other and then a third ...

The sun wanders the Milky Way alone; our star orbits the galaxy’s distant center without any stellar siblings. The solar ...

In the vast calm of the solar system, planetary orbits often appear orderly, stable, and insulated from the broader mechanics ...

Gas cloud collisions during galaxy mergers compress interstellar material, triggering new star formation, as observed in interacting systems studied by NASA and reported by Universe Today.

An illustration that shows the Milky Way's spiral arms. If you were to spring from Earth so high you could glance down at the entire Milky Way, our home galaxy would look like a spinning pinwheel. In ...

Exoplanet HD 106906 b was likely saved from being kicked out of its home system by the passage of two nearby stars.Credit: Paul Kalas, UC Berkeley New observations of a distant exoplanet and its solar ...

WASHINGTON (Reuters) - Astronomers have discovered a black hole with a mass about 33 times greater than that of our sun, the biggest one known in the Milky Way aside from the supermassive black hole ...

Alien planets born in widely separated two-star systems face a grave danger of being booted into interstellar space, a new study suggests. Exoplanets circling a star with a far-flung stellar companion ...

An international team of astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) has detected a rocky planet, about half the mass of Earth, in an extraordinarily short 7.7-hour orbit ...