The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A nearby star that may host a planet or two could provide a clue about whether planets orbiting the smallest stars ... only about 11 percent the mass of the Sun, but its flares pack a wallop.

However, none of the planets orbiting the sun have perfectly circular orbital paths and the paths don't even lie on the same plane. Compared with Mercury, the paths of the four outer giant planets ...

In our own solar system, the Kuiper Belt is a region of icy bodies, some of which fly through the inner solar system as comets, which languishes far from the sun at distances between ... as though the ...

Explore the extraordinary weather phenomena on WASP-127b, where supersonic winds reach speeds of 33,000 kilometers per hour.

Firefly Aerospace's Blue Ghost moon lander caught haunting images of Earth while preparing to make its way towards lunar ...

It actually follows its own tiny elliptical orbit around what is called the center of gravity (the barycenter) of the system, the sun and the orbiting planets. This barycenter is usually not equal ...

Scientists have captured faint magnetic signatures resulting from the tidal movement of seawater across the planet — and they ...

While the majority of these simulations resulted in a very different solar system to the one we know, around one percent resulted in the planets orbiting ... as close to the sun as Mars's current ...

Astronomy has unveiled some of the most impressive results: two Earth-sized Exoplanets orbiting a very nearby star called HD ... It takes only 4.47 days for the planet to orbit its host star, at only ...