Back in 2020, astronomers discovered an unusual star system just 1,000 light years from Earth. However, two different teams disagreed on the nature of the system, which was dubbed HR 6819.

Would one frozen world, just visible on the rim of the Sun’s kingdom, turn decades of speculation on the concealed layout of ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

In the constellation of Cygnus, some 7,800 light-years from Earth, lurks a real space oddity. There, a black hole in a system named V404 Cygni repeatedly engages in behavior that has simultaneously ...

In 2014, researchers used gravitational microlensing to confirm that an exoplanet with the working name OGLE-2013-BLG-0341LBb orbits one star of a binary pair at a distance of some 3000 light ...

Gas distribution around the trinary protostars IRAS 04239+2436, (left) ALMA observations of SO emissions, and (right) as reproduced by the numerical simulation on the supercomputer ATERUI.