When the Sun becomes a red giant, will the outer planets and moons become more temperate and conducive to Earth-like life? Terrence A. Murray Cincinnati, Ohio When the Sun runs out of hydrogen fuel ...

It is possible that all rocky planets with large moons acquire them in this fashion. NASA/JPL-Caltech. Out of all the rocky planets in our Solar System, Earth is unique for many reasons, ...

A new paper from Harvard's sometimes controversial physicist Avi Loeb has suggested that if we want to find advanced alien ...

Rogue planets are the drifters of the galaxy, wandering interstellar space alone. Now it turns out they could have company in the form of moons — and perhaps even sustain life that hitched a ...

Why is that some planets, such as Saturn, have more than a hundred moons, while others, such as Venus, have none? On Earth, you can look up at night and see the moon shining bright from hundreds ...

Any potential moons would likely get pulled in by the Sun instead. Many scientists are still looking to see whether these planets may have had small moons in the past. Back during the formation of the ...

In these scenarios, in addition to escaping from or colliding with their planets, moons also collided with one another, the researchers found. The Fast Draw: Squinting for exoplanets 03:57.

Which planets – and planetary moons – could actually have life? How close could aliens be? These are the prospects that meet the specific conditions for life to be possible ...

Moons of free-floating planets “will not be the most favorable places for life to arise,” says astrophysicist Alex Teachey, of the Academia Sinica Institute of Astronomy & Astrophysics in ...

Meet ploonets: planets of moonish origin. In other star systems, some moons could escape their planets and start orbiting their stars instead, new simulations suggest. Scientists have dubbed such ...

Ultimately, the question of why some planets have moons is still widely debated, but factors such as a planet’s size, gravitational pull, Hill sphere radius and how its solar system formed may ...

Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the ...