Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost ...

In our Solar System, the planetary orbits all have a similar orientation. Their orbital planes vary by a few degrees, but roughly the planets all orbit in the same direction. This invariable plane, as ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

The United States Space Force just offered a rare glimpse of its shadowy X-37B space plane in orbit. And now, the X-37B has notched another milestone with the Space Force's release of this photo, the ...

Last week, the US Space Force posted a photo online from its uncrewed X-37B space plane's seventh mission, showing the orbital test vehicle above our planet in High Earth Orbit. Now that's a selfie ...

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There’s a major planetary lineup coming to the early-morning sky, with the Moon joining in several times in June. First, though, let’s look at why such lineups occur. If you were to turn our solar ...

A planet's year length depends on its distance from the Sun. Planets closer to the Sun have shorter years. A planet's rotation speed is unrelated to its year length. Planets' orbital speeds vary ...