The European Southern Observatory has captured the clearest images yet of the interstellar visitor 3I/ATLAS as it moves ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

“This is a big step in understanding the outer solar system,” said Dr. Rosemary Pike, lead researcher from the Center for ...

Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

Multiple telescopes have tracked the object’s movements as far back as June 14 and found that the comet arrived from the ...

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed. The object -- likely a comet -- was first detected in data collected between ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...