This is what the researchers homed in on: the effects of the galactic tide. To do that, they observed long-period comets, which originate from the Oort cloud and barge into the solar system's ...

providing a new look at the galactic region surrounding our solar system. The NASA New Horizons spacecraft's extensive observations of Lyman-alpha emissions have resulted in the first-ever map ...

The solar system drifts inside an immense ... Instead, it expands more easily perpendicular to the galactic plane, where it faces less resistance compared to the dense horizontal disk of the ...

This range aligns with theoretical predictions for Planet Nine’s distance and mass, estimated between 7 and 17 times that of Earth . The researchers initially identified 13 candidate pairs showing the ...

then its total mass is estimated to be around 200 trillion solar masses. More information: Shigeo Yamauchi et al, A new candidate of a cluster of galaxies behind the Galactic plane, AX J145732 ...