New research has found evidence that Earth's early continents resulted from being hit by comets as our Solar System passed into and out of the spiral arms of the Milky Way Galaxy, turning ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

There will be no life on Earth at this time — increasing solar luminosity will have eradicated all life about 2.8 billion years before the first Milky Way/Andromeda close encounter.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

Astronomers have discovered six planets orbiting a bright, nearby star in perfect synchrony like a grand cosmic orchestra. The rare find can help explain how solar systems across the Milky Way ...

Our own galaxy, the Milky Way, is thought to host between 100 and 400 billion stars, but there's no way to know the exact figure. Likewise, there's no way to know for sure how many star systems ...

The universe has billions of galaxies, and our solar system is in the Milky Way Galaxy. The Milky Way contains at least 100 billion other stars besides our sun. Nebula jar.

Sauk Prairie will get a glimpse of one of the two eclipses that will occur over the next thirty days. The total solar eclipse ...

The team found only a 2 percent probability that the galaxies will collide in the next five billion years. In slightly over half of the simulated scenarios, Andromeda and the Milky Way experience at ...