The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

The exoplanet — named 14 Herculis c, or 14 Her c for short — orbits a sunlike star about 60 light-years from Earth in the ...

An accidental discovery might change how we think about one of the most mysterious structures in our solar system.

Earth’s companion has allowed astronomers to define lunar cycles, navigate without technology, and understand celestial ...

Modern astronomy is giving us unprecedented ... These ancient swarms, which orbit the sun alongside the giant planet, may hold clues to the solar system’s original layout. Photograph by PATRICK ...

How the pioneering scientist, and namesake of an enormous new telescope, forced astronomers to rethink the universe.

For nearly three decades he has created mesmerizing planetarium shows at the American Museum of Natural History. But other ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

New James Webb Space Telescope data reveal Pluto's high-altitude haze is a key driver of the climate on the dwarf planet, ...