In general, the best time to view the planet parade will be after Jan. 21, and before Feb. 21. The very best nights will be ...

The presence of a North Pole star is a coincidence that has saved lives and perhaps changed history, but is it shared across ...

Astronomers are searching for a potential ninth planet, known as Planet Nine, which could reshape our understanding of ...

There are gas giant planets bigger than Jupiter, and extremely hot planets that orbit so close to their stars that a year ...

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form.

New observations show that planets forming in protoplanetary disks like that around PDS 70 can trigger the formation of ...

Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.

The Webb Telescope reveals new insights into icy planetesimals, shedding light on the early solar system's evolution.

Some 2,600 light-years from our own Solar System dwells one of the most peculiar planetary systems in the entire galaxy.

If Saturn's rings are older, they are also easier to explain. The Solar System was much more chaotic billions of years ago, ...