The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...

The NASA/ESA/CSA James Webb Space Telescope has discovered a new moon orbiting Uranus. The moon, designated S/2025 U1, is ...

Earth will have a visitor within its orbit for the next several decades, according to astronomers. An asteroid named 2025 PN7 has become a "quasi-moon" to Earth, as it will be sharing an orbit with ...

NASA's towering SLS rocket that will help propel four astronauts on a historic journey around the moon is now visible at the ...

American astronauts who return to the moon’s surface in the years ahead for the first time in more than half a century will have the difficult and unprecedented task of setting the stage for a ...

Private companies are testing new power systems for longer rover missions and future human lunar habitats. By Mack DeGeurin Published Dec 11, 2025 1:08 PM EST Get the Popular Science daily ...

"Recent studies suggest that the lunar farside experienced a magma ocean evolution similar to that of the nearside," the team ...

U.S. astronauts who return to the moon’s surface in the years ahead for the first time in more than half a century will have the difficult and unprecedented task of setting the stage for a permanent ...