The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, ...

No explosive birth needed: The discovery suggests this black hole likely formed through direct collapse, a quiet implosion ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons as well. While some TNOs could be called dwarf planets because of their ...

Skywatchers throughout the Northern Hemisphere are enjoying views of the newly discovered Comet SWAN.

The discovery of natural satellites on Saturn assists researchers in understanding the dynamics of orbits, resonances, and the stability of planetary systems in general ...

What kind of mission would be best suited to sample the plumes of Saturn's ocean world, Enceladus, to determine if this ...

The moon is anticipated to reach its full moon phase on April 12, according to the Old Farmer’s Almanac. Rather than being a ...

Upon discovery, astronomers were surprised to discover that the comet was already quite bright, shining at a magnitude of 10.

Pluto did not meet the third criterion ... It's the only dwarf planet in the inner part of the solar system, orbiting in the asteroid belt between Mars and Jupiter. It was initially thought ...

If it is time to cut ties or stop orbiting the past ... On April 26, Mars locks into its biennial opposition to Pluto, which is in Aquarius and your domestic house, playing extreme tug-of-war ...