The planets are all on the same orbital plane because, during the formation of the solar system, a massive cloud of dust and gas collapsed under its own gravity and flattened into a disk.

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

The International Space Station - a blazing symbol of humanity’s destiny to move out across the cosmos - must be saved from ...

THE question of the origin of the solar system is one that has ... that the planets cannot have entered the system from outer space, for then their orbital planes would be inclined to one another ...

"Surprisingly, many of these so-called trans-Neptunian objects move on eccentric orbits that are inclined relative to the ...

The space agency defied incredible odds to get its asteroid-hunting OSIRIS-REx spacecraft off the ground. Since then, the mission has upended everything we know about our solar system.

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the ... is tilted 25.2 degrees relative to the plane of the planet’s orbit around the sun ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this week — and how you can see in until November.

Comet C/2023 A3 (Tsuchinshan-ATLAS) was discovered in 2023 by China's Tsuchinshan Observatory and South Africa’s Asteroid Terrestrial-impact Last Alert System ... comet's orbital plane, causing ...

The passage of Comet C/2023 A3 presented an opportunity to gain insights into the near-Sun environment and solar space weather.