Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

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

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 ...

Gravity is pulling more than just stars together - it’s dragging entire galaxies into violent encounters. The Milky Way is currently absorbing the much smaller Sagittarius Dwarf Galaxy, and the ...

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

MORE: Exoplanet discovered in 2020 has the coldest temperatures ever measured, scientists say. The researchers used a ...

Milky Way viewing is at its best right now, especially if you’re in the southern hemisphere. Here's what to look out for, ...

Scientists have created digital “twins” of our Milky Way galaxy to investigate one of the biggest puzzles in the universe: dark matter. This invisible substance makes up about 85% of all ...

A study published in Nature Astronomy suggests that there is a 50-50 chance of the Milky Way and the Andromeda galaxy ...

Learn more about the planets, asteroids, and comets in our solar system. 3:55. Solar System 101. ... scientists estimate that billions of planetary systems must exist in the Milky Way galaxy alone.

The Milky Way galaxy is around 100,000 light-years in diameter, containing our solar system and many other objects. Our solar system orbits the galaxy's center, taking about 250 million years to ...