Two icy moons of Jupiter, though neighboring and of similar size, exhibit radically different internal structures. A new ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Detecting exoplanets is one thing, but imaging them is another thing entirely. Astronomers can detect them by the way they ...

Read What are asteroids?Asteroids are rocky objects that orbit the Sun just like planets do. In fact, sometimes asteroids are ...

Only one of the known Venus co-orbital asteroids follows a nearly circular orbit; the others move on more elongated paths ...

A recent study in Icarus suggests a wandering star could disrupt our solar system. Simulations reveal that a star passing ...

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a ...

An asteroid that was briefly feared to be on a collision course with Earth is now more likely to strike the Moon in 2032, ...

A star with a mass similar to our Sun passing within 10,000 astronomical units could disturb Oort Cloud, which is located far ...

Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...