Astronomers have discovered two new satellite galaxies of the Milky Way, and these findings could help us better understand dark matter — the mysterious stuff that accounts for around 85% of the matter in the universe yet remains effectively invisible to us.

Our Milky Way galaxy has a group of smaller galaxies orbiting it, like little moons around a planet. Scientists have just discovered two new ones, named Sextans II and Virgo III.

Finding these tiny galaxies is important because it helps us understand dark matter, a mysterious substance that makes up most of the universe but is invisible to us. It also brings us closer to solving a puzzle about how our universe formed.

These new discoveries are exciting because there are probably many more of these small galaxies out there waiting to be found. Scientists are using powerful telescopes to search for them and learn more about our cosmic neighborhood.