WASHINGTON (Reuters) -Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star. The discovery defies current understanding of how ...

Astronomers are scratching their heads over a recently discovered planet. The planet, dubbed TOI-6894b, orbits a star 238 light-years from Earth. The planet is huge; the star is tiny, a red dwarf only ...

Using 16 years of data from NASA's gamma-ray detecting Fermi spacecraft, astronomers have discovered that "microquasars," ...

IMAGE: Among thousands of known exoplanets, MIT astronomers have flagged three that are actually stars. Pictured is an artist’s interpretation of stars and planets. CREDIT: NASA A new study published ...

An enormous planet orbiting a tiny star may break our ideas about planet formation. Astronomers have found a world more than 13 times as massive as Earth orbiting a star nine times less massive than ...

The host star, TOI-6894, is a red dwarf with only 20% the mass of the Sun, typical of the most common stars in our galaxy. Until now, such low-mass stars were not thought capable of forming or ...

Illustration of the planetary system of L 98-59: five small exoplanets orbit closely around this red dwarf star, located 35 light-years away. In the foreground is the habitable-zone super-Earth L ...

Astronomers have discovered an extrasolar planet only three times more massive than our own, the smallest yet observed orbiting a normal star. The star itself is not large, perhaps as little as one ...

"We would like to understand the difference between these systems, which holds the clue to understand just how many cosmic rays are produced in the jets of microquasars." When you purchase through ...