Latest Kevin Luhman Stories
NASA's WISE and Spitzer Space Telescope have discovered what appears to be the coldest "brown dwarf" known -- a dim, star-like body that, surprisingly, is as frosty as Earth's North Pole.
Using data obtained from a NASA satellite, a Pennsylvania State University astronomer has identified the closest solar system to be found within the past 97 years.
The photo of a nearby star and its orbiting companion -- whose temperature is like a hot summer day in Arizona.
As our telescopes grow more powerful, astronomers are uncovering objects that defy conventional wisdom.
Astronomers using Hubble have photographed one of the smallest objects ever seen around a normal star beyond our Sun. Weighing in at 12 times the mass of Jupiter, the object is small enough to be a planet.
Moons circle planets, and planets circle stars. Now, astronomers have learned that planets may also circle celestial bodies almost as small as planets. NASA's Spitzer Space Telescope has spotted a dusty disc of planet-building material around an extraordinarily low-mass brown dwarf, or "failed star."
- an ornament or knob in the shape of a flower