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

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.

Scientists focused on Jupiter's little moons Amalthea and Thebe. Their peculiar orbits didn't quite fit with Jupiter's ...

A group of astronomers from across the globe, including a team from the University of Washington and led by Queen's ...

A group of astronomers from across the globe, led by Queen’s University Belfast, have revealed that millions of new solar ...

New research suggests that Jupiter, the largest planet in our solar system, was once even bigger—about twice its current size—and had a magnetic field 50 times stronger than it does today. This ...

Of the roughly 6,000 exoplanets we’ve discovered, a significant number are in the apparent habitable zones of their stars.