No-one has visited the Moon since 1972. But with the advent of commercial human spaceflight, the urge to return is resurgent and generating a new space race.
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.
The universe may be filled with "mirror" particles — and these otherwise-undetectable particles could be shrinking the densest stars in the universe, turning them into black holes.
Stressed out and teased by the weather, the Valoria 1 crew immerses themselves in artistic and imaginative projects.
A mysterious "kick" in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say.
Most stars in the universe today are found in massive galaxies called ellipticals, named for their stretched-out-circle shape.
It’s hard to care about bootprints sunk in soil 238,900 miles away as humanity suffers the combined burden of an unforgiving virus and a political unease.
The South African Astronomical Observatory in Cape Town is the oldest permanent observatory in the southern hemisphere: it turned 200 in 2020.
Albert Einstein’s theory of general relativity profoundly changed our thinking about fundamental concepts in physics, such as space and time.
According to a recent report, there have been no signs of supersymmetry, and the theory is looking a little shaky.
A team of physicists recently used a string-theory technique to reveal that we're on the cusp of detecting phase transitions in the early universe through their gravitational wave signature.
What if there is more than one cosmological agent for dark energy? This mixture would have strange effects in our universe, making it potentially detectable with upcoming surveys.
If you look up in the southern sky you can see the “pointer” stars, pointing towards the Southern Cross.
Charles “Chuck” Yeager, who has died aged 97, epitomised the movie test pilot of the 1940s and 1950s.
If intelligent aliens visit the Earth, it would be one of the most profound events in human history.