What would happen if our Sun—as it actually exists, in the present—suddenly decreased in mass, plummeting from 1 solar to mass to a mere .5 solar masses? In order to understand what impact ...

The sun is the lifeblood of our solar system, a blazing star that has held everything together for over 4.6 billion years. But like all things in the universe, even our sun will not last forever.

So if our solar system is more or less flat in terms of the planetary rotations around the sun (I'm using typical pictorial depictions of the solar system), what is up and down from our solar ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

Out there, in the far recesses of the Solar System, a great existential threat lies in wait for planet Earth: the Oort cloud. Formed at the outset of the Solar System, it largely consists of the ...

New observations by the Gemini South telescope at Cerro Pachón in Chile revealed that interstellar object 3I/ATLAS' tail is ...

We can leave the Solar System, but arriving anywhere is not happening soon What if we dropped interstellar ambitions and focused on understanding our home system?

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

Our sun emits powerful solar winds that wrap around the planets in our solar system like a giant bubble. This magnetic bubble, called the heliosphere, protects the planets from harmful cosmic ...