TOI-201 is one of the few systems whose changes can be observed by humans in real time.

Interstellar comet 3I/ATLAS showed changes in its gas composition after passing close to the sun, offering data on its ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Where you are in the solar system changes just how much of an effect the Sun has on you. For Earth, the Sun can cause bright aurorae that can extend down into the mid-latitudes. For comets, the ...