New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

For Harold Kozak, one of life’s greatest pleasures is the opportunity to educate the public about the stars and the vast ...

The largest interstellar comet discovered could be an alien technology. The newly found Manhattan-sized object, named ...

NISAR, a new Earth-observing satellite, is a collaboration between NASA and India’s space agency. A new radar satellite, ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

Harvard astrophysicist Avi Loeb co-authored a July research paper speculating about whether the comet 3I/ATLAS is in fact ...

Earlier this month, astronomers observed a mysterious object with interstellar origins speeding through the inner solar ...

We shouldn't assume anything, and we should assess the risk given the data that we have,” Avi Loeb said of 3I/ATLAS ...

I/ATLAS is just the third recorded interstellar object to enter the solar system. However, the scientific consensus is that ...

L anding on another body in the Solar System is a tough business. Despite many successful touchdowns throughout history, ...

NISAR, built jointly by NASA and India’s space agency and launched on Wednesday, will use radar to monitor tiny changes ...