After almost a decade in space, the New Horizons probe's close encounter with Pluto lasted just six days as it hurtled past at nearly 50,000 kilometres an hour. I was lucky enough to witness ...

Sound as we know it does not exist in space. That’s because ... The distance from Earth to Pluto is 4.67 billion miles. The average passenger aircraft travels at 575 miles per hour.

An curved arrow pointing right. Space is so unfathomably large and so unbelievably weird, that it can sometimes be difficult to convey basic facts. For example, you can fit all of our solar system ...

In the wake of this colossal impact, the colliding bodies behaved like fluids, with the moon forming out of the molten debris which had been ejected into space. "Pluto and Charon are different ...

Butch Wilmore and Suni Williams have nearly half a century of combined experience as astronauts. But this is just their third ...

Staring at the sun—a close (but safe) look at our home star Staring at the sun—a close (but safe) look at our home star Need a new idea to keep kids entertained? Try stargazing. Need a new ...