Physicists have discovered a new, exotic kind of tetraquark, made up of four charm quarks. They say it's a major breakthrough.
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.
There's a reason — actually, several — why Sir Isaac Newton is often considered the No. 1 scientist of all time.
Blood clots are life-threatening, as they can cause heart attacks or strokes and lead to huge health related costs on Earth.
There are a lot of reasons that a faster spaceship is a better one, and nuclear-powered rockets are a way to do this.
Since the launch of Sputnik 1 in 1957, the lower orbit around the Earth has become an increasingly congested environment.
Atmospheric scientists sampled the most pristine air on Earth, just above the Southern Ocean. They found some surprises.
Young people who are “hooked” on watching fantasy or reading science fiction may be on to something.
A physicist proposes that the moon is a great place to build a particle collider and conduct high-energy physics experiments.
Physicists are figuring out how close you can get to a black hole before you are unlikely to escape. That threshold is called the innermost stable circular orbit (ISCO).
Space exploration technologies have already helped benefit Earth in many ways, especially when it comes to communications, Earth observation and even fostering economic growth.
Around the planet, a loosely knit but closely woven band of amateurs monitor the whereabouts of satellites — be they secretive spacecraft, rocket stages, orbital debris or lost space probes.
Magnetars — highly magnetized, rapidly rotating super-dense stars — are among the most enigmatic creatures to inhabit the cosmos and their origins are shrouded in mystery.
Researchers at Los Alamos National Laboratory recently developed and demonstrated the ability to stop and restart solid rocket motors many times — something that has never been done before.