Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

Flybys of Jupiter’s fiery moon Io, carried out by NASA’s Juno spacecraft, are helping to solve the enduring mystery of why the small moon is the most volcanically active body in our solar system.

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

A computer visualization maps small bodies in the solar system that are expected to be observed by the Rubin Observatory during the 10-year Legacy Survey of Space and Time. Red indicates near-Earth ...

For decades, the four known forces of nature, gravity, electromagnetism, and the strong and weak nuclear forces, have ...

Rubin Observatory finds 11,000 new asteroids in early data, including near-Earth and distant objects, before its main 10-year ...

Observations of the outer Solar System with the Subaru Telescope have discovered new bodies where none were expected. The new objects are likely members of a much larger population waiting to be ...

The interplanetary comet 3I/ATLAS is remarkably rich in a specific type of water that contains deuterium, meaning it came ...

New observations of the interstellar comet 3I/ATLAS include the first measurement of the abundance of deuterated water ...

New observations of interstellar comet 3I/ATLAS show high levels of deuterated water, suggesting it formed in a colder star ...

Observing the interstellar visitor after its closest approach, astronomers found that its composition appears to have changed ...