Japanese astronomers have discovered a potential dwarf planet, nicknamed Ammonite, orbiting the Sun far beyond Neptune, challenging the existence of the theorized Planet Nine.

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

Scientists have been wondering for years whether there is a ninth planet in our solar system. Now, a study by Japanese scientists seems to bust that belief. They have found an object orbiting the Sun ...

They often twirl around heavier ones, like our Milky Way, as satellite dancers. The dark matter distribution of a Milky Way ...

Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

Astronomers believe there may be a significantly greater number of satellite galaxies orbiting the Milky Way than previously ...

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to ...

What methods can astronomers use to identify exoplanets orbiting within a young exoplanetary system’s disc of dust and gas ...

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...

Hubble’s crystal-clear look at NGC 1786—an ancient globular cluster tucked inside the Large Magellanic Cloud—pulls us 160,000 ...

Researchers may have found our galaxy's missing companions, further bolstering science's most widely accepted cosmological ...