The prevailing model for planetary accretion assumes that the solar system's planets formed in an extremely hot, two-dimensional disk of gas and dust, post-dating the sun. Scientists now propose a ...

Observations of the interacting binary star using telescopes at Kitt Peak National Observatory and NASA’s Spitzer Space Telescope suggest that the disks of hot gas that accumulate around a wide ...

A new analysis of the common accretion-disk model explaining how planets form in a debris disk around our Sun uncovered a possible reason for Earth's comparative dryness. The study found that our ...

The black hole’s spin axis is assumed to align vertically. The jet’s direction is almost perpendicular to the disk. The misalignment between the black hole spin axis and the disk rotation axis ...