Space scientists say they are preparing a comet interceptor spaceship as the third interstellar object ever detected was spotted this week. A mysterious object the size of Manhattan was spotted by ...

Astronomers have discovered a new interstellar comet passing through our solar system, marking the third interstellar object ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

The European Space Agency (ESA) will launch its bold "Comet Interceptor" Mission after 3I/ATLAS became the third interstellar ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...

In the frozen outskirts of the solar system, a reddish dwarf planet orbits in silence. Known as Sedna, it is so distant that ...

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