It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

Discovered in 1846 through mathematics rather than sight, Neptune was the first planet found by calculation — astronomers ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...

Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 ...

Use cases for smart materials in space exploration keep cropping up everywhere. They are used in everything from antenna ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Astronomers have found a developing ring system around Chiron, an icy body between Saturn and Uranus. This discovery provides ...

When we think of a day, we usually imagine 24 hours. But did you know that not all planets have days that last 24 hours? In ...

See Comet Lemmon shine in the skies over England in a new sunset portrait. Award-winning astrophotographer Josh Dury has ...

Bill McKinnon shares his story of a career spent studying the geology and geophysics of icy worlds beyond our own. McKinnon, ...