Information about Uranus is limited. What we know is that the planet is composed mainly of water and ammonia ice, its ...

Based on 20 years of observations by NASA’s Hubble Space Telescope, new research sheds light on one of the solar system’s ...

Uranus' hidden secrets revealed by a stellar eclipse A stellar occultation is when a distant star is eclipsed by an orbiting celestial body, such as a planet, which blocks the starlight.

Giant planets are not rare per se — after all, we have four in our own solar system. Such large worlds are, however, rarely ...

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

While planets like Jupiter and Saturn might be known for having an extreme number of moons, with 95 and 146 orbiting each respectively. Uranus and Neptune’s numbers of natural satellites are ...

Jupiter joins Mercury in early twilight as Mars lingers with Leo after dark. Saturn is visible in the morning, meeting ...

The tiny pebbles left over from a star's formation fed the growth of one of the strangest, wildest worlds humanity has ever ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

The universe is a complete unknown to humans. We are not yet able to control and understand the system in which Earth is located, as evidenced by the possible discovery made by a g ...

A new information superhighway involving telescopes, satellites, remote mountain tops, and mirrors is rapidly evolving ...