Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...

Learn how you can say farewell to comet 3I/ATLAS as it passes by Earth on Dec. 19, 2025, and what we have learned during its brief visit near Earth.

WASHINGTON (Reuters) -Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it ...

At the farthest edge of the Sun’s influence, the Voyager probes have stumbled into something that sounds almost mythic: a ...

Astronomers have made an incredible discovery of a large molecular cloud located just over 300 light-years from Earth that is invisible to the naked eye but detectable in the far-ultraviolet range of ...

As detailed in a paper to be published in the journal Nature Astronomy, the international team of researchers spotted the crescent-shaped gas cloud, dubbed Eos, on the edge of the Local Bubble, an ...