We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

They quickly became massive enough to also gravitationally trap gases such as hydrogen and helium from the disk. This runaway growth led to the formation of the gas and ice giants in the outer solar ...

The color of the sky also changes depending on the time of day, and during the twilight hours, you get a very pretty transition from blue, to a deeper blue, to a lovely pale pink as the solar disk ...

The SBM is a modified externally occulted coronagraph capable of imaging the solar disk and sky simultaneously. The ability to image the Sun and the sky simultaneously greatly simplifies the ...