Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

Using the Kepler space telescope, the agency had discovered an exoplanet the size of Earth located in the habitable zone of another star. The planet was the first of a similar size to Earth ...

With its beautiful rings, Saturn may be the most stunning planet in the solar system. It is the sixth planet from the sun and ...

However, at least 100 tons of dust-size space rock rains down on the Earth every day, increasing the size of our planet bit by bit. The Earth also collides with space rocks, called meteors, that show ...

Kosmos-482, a spacecraft bound for Venus in 1972, was a time capsule from the Cold War when superpowers had broad ambitions ...

A Soviet-area spacecraft that orbited Earth for more than 50 years crashed into the Indian Ocean on Saturday, Russian ...

Neptune, TOI-270 d provides a critical opportunity to understand atmospheric composition and planetary evolution in a ...