Who wouldn't want to travel in time, glimpsing the dinosaurs or peeking at humans 2,000 years from now? Now physicists have designed a time machine that seems deceptively simple.
SPACE.com invites experts in space exploration, science & technology to provide insightful commentary and informed perspective on news, current events, innovations, big ideas and ongoing research. Expert Voices includes Op-Ed analysis and opinion as well as interesting observations from the field and space exploration efforts around the world.
As comets blaze across the night sky, they can bring wonder and excitement to those watching from Earth – or even a sense of impending doom.
Magnets and the magnetic force are ubiquitous in our everyday lives, helping to guide us in unfamiliar territory and attach our kids' artwork to the fridge.
If you want to capture the attention of the next generation of scientists, try captivating them with the wonders of space.
An extraordinary account of the impact space weather had on military operations in Vietnam in 1972 was found buried in the U.S. Navy archives, according to a newly published article in Space Weather.
In 1980, physicist Alan Guth proposed a radical extension to the standard Big Bang model of the history of the universe, proposing a transformative event called cosmic inflation.
The "vanilla" Big Bang model, without any other additions or amendments, can't explain all the observations. Here's how it might have worked.
According to a Gallup Poll from 1999, only 50 percent of those surveyed could even name Neil Armstrong as the first man to land on the moon.
I grew up in the 1960s, during the beginning of the space race. The first astronauts were my heroes, and it was the Apollo 11 moon landing that kicked off my dream of becoming an astronaut myself.
We've known for about 20 years that the expansion of our universe is accelerating, but how does the dark energy that causes it work?