Fluctuating levels of radioactive iron-60 suggest the solar system recently entered a cosmic cloud.

Recent astronomical observations have thrown a curveball at our understanding of the cosmos. The solar system, it seems, is hurtling through space at a velocity three times greater than previously ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system.Video above: Astronomers discover how planets formThe Hubble Telescope and its Wide Field ...

Earth is flying through the radioactive ashes of an ancient exploded star, and Antarctic ice preserved the evidence.

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place before our solar system existed.

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...