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The Sun is an incandescent but benevolent dictator. For billions of years, it's kept our Solar System well organized and ...

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

and sustaining temperature gradients of 25–100 K and pressure differences of 10 kPa against the vacuum of space can allow ...

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

The evolution of the orbits of the planets is a complex process. Initially the planets formed out of a rotating disk of gas ...

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

Dark comets are comets that are so small, fast and/or chemically rare that they are difficult to see from Earth ...

The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, ...

If a future spacecraft can confirm that they are organic, then it would virtually confirm that Ceres is producing these ...

The research team's simulations indicate a 1 in 100 chance that an interstellar visitor could produce the orbits we see today ...

New radio astronomy observations of a planetary system in the process of forming show that once the first planets form close to the central star, these planets can help shepherd the material to form ...