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

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

Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

As more satellites are launched into orbit, space agencies are looking at how to predict space weather events that could harm ...

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

NASA’s Voyager 1 and Voyager 2 spacecraft delivered groundbreaking data that expanded our understanding of the solar system’s outermost edge,a region scientists call the "cosmic coastline." This is ...

In our analysis this week, we look at how NASA's proposed budget would slash the agency's science division by nearly 50%.

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

Researchers have looked into how far away the Voyager spacecraft could go while we could still detect them, and worked out ...

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