Space
It's been 60 years since Yuri Gagarin became the first man in outer space
Author Stephen Walker discusses his biography on Yuri Gagarin with The World's host Marco Werman.
Kirk to Enterprise: The piece of 'Star Trek' in your pocket
In a first, scientists spotted an ‘interstellar visitor’ in our solar system
In a long-ago neutron star collision, scientists find a cosmic goldmine
Finding an Earthly home for the Thirty Meter Telescope
This pressurized, skirt-like machine helps keep astronauts fit
Engineer Christine Dailey spends her time puzzling over problems like exercising in space, fuel slosh in zero gravity and more.
Satellites are destined to become space junk. But in the future, we may be able to retool them.
Most satellites are engineered to last a long time, but there's no way to repair or refurbish them. They simply become obsolete. Government agencies and private companies are trying to change that.
Some of the oxygen on the moon used to be on planet Earth
The moon may be airless, but we know it has oxygen — Apollo mission samples confirmed its presence in the moon’s soil.
Three ways to die on Venus, and other space facts
In his new book, the astronomer Dean Regas lays out some of his favorite trivia about the cosmos.
Why the moons of Uranus are named after characters in Shakespeare
Twenty-five of Uranus’ 27 moons are named for characters in Shakespeare’s plays. Why?
How to Catch a Spacetime Wave
Astrophysicist Janna Levin explains why it took scientists 100 years to confirm one of Einstein’s most outlandish predictions: gravitational waves.
Check out these spectacular supermoon photos from all over the world
People from across the globe took to rooftops, hills, observatories and beaches to get a glimpse of the closest supermoon to Earth in almost seven decades, and snap photos of the event.
How close are we to sending humans to Mars?
With recent announcements by companies like SpaceX, experts say the technology get us to Mars may not be far off — if we’re ready to live there.
One astronaut says his career seemed unlikely, 'like growing up to be Spider-Man'
Mike Massimino has been to space twice to repair the Hubble Telescope, but his career as an astronaut wasn’t always likely.
An artist finds inspiration in the celestial frustrations of astronomer Charles Messier
Pictures from space can be turned into amazing art.