Recent observations of the outer Solar System using the Subaru Telescope have uncovered objects where none were expected, hinting at the possibility of a larger and more complex structure in our ...

Tiny shavings from a single meteorite could completely overturn our understanding of how the solar system formed, after the space rock turned out to be older than expected. Previous research suggests ...

Astronomers have recently detected a colossal object at the edge of our solar system, sparking excitement and curiosity ...

Ancient droplets found in meteorites reveal the history of planet formation. About 4.5 billion years ago, Jupiter expanded quickly into the giant planet we see today. Its immense gravity disturbed the ...

A team of researchers, including those at the University of Tokyo, discovered that liquid water once flowed on the asteroid ...

Peering through a cosmic keyhole at distant baby star, astronomers may have opened a new window on the deep past of our own solar system. Weighing in at 0.6 solar mass, HOPS-315 should someday grow to ...

Our solar system's latest and only third known interstellar visitor is becoming more fascinating by the minute. Spotted in early July, the object, dubbed 3I/ATLAS, is believed to be a comet. It's ...

The discovery that water existed in liquid form a billion years after the parent body of Ryugu formed came from the study of ...

Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

This illustration provided by NASA depicts the Europa Clipper spacecraft over the moon, Europa, with Jupiter at background left. (NASA/JPL-Caltech via AP) (CN) — The largest planet in our solar system ...

Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object with interstellar origins that has defied ...

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...