A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Cosmic rays coming from outside the Solar System bring these particles closer to the Sun, where they experience changes ...

Helium can help scientists detect the speed and direction at which we’re moving through space. Deuterium, which is left over ...

New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, leaving a lasting imprint on the orbits of our planets. This intriguing ...

We will never get an image of the Milky Way from above, but M81 or Bode's galaxy is a good stand-in – and now is a great time ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

Helium can help scientists detect the speed and direction at which we’re moving through space. Deuterium, which is left over ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...