The nearest world that might host life is just 4.2 light-years away — but at the speed of the fastest spacecraft humanity has ever flown, the trip would take 75,000 years, and the one serious plan to go faster has quietly collapsed
Just over four light-years away, the Alpha Centauri system holds the closest worlds beyond our own that might support life. One, Proxima Centauri b, is a confirmed Earth-mass planet in its star's…
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Proxima Centauri b is our closest known habitable-zone exoplanet, just over four light-years away, and it may be warm enough for liquid water if it has kept an atmosphere. But that “if” is enormous: its red-dwarf star blasts it with extreme radiation stro
Proxima Centauri b has a claim no other known exoplanet can match. It orbits the nearest star to the Sun, just over four light-years away, a
Proxima Centauri as the Leading Candidate for Humanity's First Interstellar Mission
We normally think of interstellar flight in terms of reaching a single target. The usual destination is one of the Alpha Centauri stars, and
Alien life on nearby 'super Earth' much likelier than we thought, study claims
A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, raising the chanc
This Intriguing Exoplanet is Just 25 Light-Years from Earth—Is Its Too Dangerous to Be Home to Life?
Researchers have discovered a potentially habitable exoplanet just 25 light-years from Earth—but is its precarious location on the cosmic sh
Voyager 1 to Reach One Light-Day Distance from Earth by November 2026
After nearly 50 years in space, NASA’s Voyager 1 is about to hit a historic milestone. By November 15, 2026, it will be 16.1 billion miles (
scienceclock.com·7mo ago
Potential Discovery of a World Next Door
JWST provides new evidence that one of our nearest neighbor stars, Alpha Centauri A, might host a giant planet in its habitable zone. The po
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