Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

Fans are already complaining about Galactus' size in The Fantastic Four: First Steps, but in the end, it doesn't really matter.

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting within the habitable zone of its star – the range of distances where liquid ...

The powerful Webb with its incredible sensitivity observed dust grains the size of bacteria, which will eventually coalesce ...

NASA's Perseverance rover has been busy gathering bits of Mars — rock cores the size of chalk sticks, clusters of broken fragments no bigger than pencil erasers, and even grains of dust fine enough to ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Since the asteroid YR4 was first discovered in December 2024, the odds that it could crash into earth have more than doubled.

The planet, dubbed TOI-6038A b, is a dense sub-Saturn size with a mass of 78.5 Earth masses and a radius of 6.41 Earth radii in a wide binary system.