Research indicates airport radar systems may unintentionally broadcast Earth's presence to aliens up to 200 lightyears away, ...

During the height of the Space Race, space exploration occupied a much larger place in American culture and education.

Gliding through "interstellar space" at about 61,000 km an hour, Voyager 1 crossed the heliopause, the boundary where the Sun ...

Proxima Centauri is the closest star to the Sun, but current spacecraft would need tens of thousands of years to reach it.

From star‑forming pillars to colliding galaxies, Hubble’s most iconic images reveal how the universe is built, evolves and continues to surprise For more than 35 years, the Hubble Space Telescope has ...

Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

In fact, polls in Australia, the US and elsewhere indicate around a third of the public believes aliens are here. However, while what we know about the universe suggests aliens may exist, there are ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Laser sail propulsion is an idea that won't go away. By aiming powerful Earth-based lasers at tiny spacecraft with light sails, tiny spacecraft can be accelerated to near-relativistic speeds without ...