"I think these are not far-out type of ideas; they are not really futuristic ideas that we are talking about." ...

Interstellar space is unforgivingly vast, but the emptiness has some advantages. The lack of atmosphere means there is no aerodynamic drag.

Voyager 1 launched on 5 September 1977. Nearly forty-nine years later it is still operating, about 25 billion kilometres from ...

Since the dawn of the solar system, rocky visitors from deep space have blazed across Earth’s skies. When will the next asteroid or interstellar object make its pass by our planet?

On a single day last November, two spacecraft millions of kilometers apart turned their ultraviolet eyes toward the same ...

A Pentagon release of new UFO footage has revived the question of whether aliens could realistically travel to Earth.

NASA’s Europa Clipper and ESA’s JUICE captured opposite sides of interstellar comet 3I/ATLAS at the same time, revealing strange chemistry inside it.

Mercury may have gotten much of its polar ice within a single Mercurian day following a massive asteroid impact, a new study ...

The interstellar object 3I/ATLAS has sparked online speculation about alien technology after viral TikTok videos claimed unusual behaviour. Astronomers attribute its brightening to natural processes.

He says it may be seeding life like an "interstellar gardener." The post Scientist Suggests That 3I/ATLAS May Have Seeded ...

Our sun is a loner. It lacks a stellar companion hurtling through interstellar space with it. But we've known for a long time ...