Voyager 1, Earth’s farthest spacecraft, has been on an extraordinary journey for over 45 years, exploring uncharted ...

When Voyager 1 and 2 crossed the boundary of the heliosphere, many believed they would drift silently into a cold, empty ,voidinterstellar space. It was expected to be a lifeless region, too sparse ...

John Casani, who has died aged 92, was an American spaceflight engineer who led the teams that pioneered Nasa’s explorations ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Scientists have found that Uranus is emitting its own internal heat — even more than it receives from sunlight — and this ...

Before it met the 30,000-50,000 kelvin wall at the edge of our Solar System, Voyager 1 took its final images.

NASA's Voyager 1 & 2 Were Not The First Missions To Reach The Outer Solar System They were also not the first missions to carry a message intended for extraterrestrial beings should they reach ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

A new study led by University of Houston researchers, in collaboration with planetary scientists worldwide, suggests Uranus ...