Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

Three celestial bodies are preparing to meet up for one night in September in a cosmic conjunction that should be widely visible in the sky.

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

2025-PN7 is around 62 feet (19 meters) wide, and it’s between 2.8 million miles and 37.2 million miles away from Earth. It ...

For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers now confirm that this small body, named 2025 PN7, is traveling in a special ...

Two of Pluto's midsize moons may be made of the guts of its largest moon, Charon, new research suggests.

Earth observation satellite company Planet Labs (NYSE: PL) stock shot sharply higher Monday morning, soaring by 35% through ...

A spectacular convergence of astronomical events will light up the skies this weekend, as reported by Forbes. Stargazers ...

Astronomers believe they’ve discovered another so-called quasi-moon of Earth, though it’s likely been circling undetected in near space for decades. Dubbed 2025 PN7, this mini moon is actually an ...