Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

After this transition happens, the gas is blown off the surface of the comet in a process called outgassing. Small dust grains and rocks that are in the ice and on the comet's surface are swept up ...

A comet that has not been seen since the Stone ... This latest arrival of the aurora was caused by a fast coronal mass ...

placebo-controlled study is designed to assess the efficacy and safety of omecamtiv mecarbil in patients with symptomatic HF with severely reduced ejection fraction. The primary endpoint of COMET ...

with significant dust ejection, which is crucial for understanding the impact of landing operations on the lunar surface. Another study utilized numerical methods to estimate the trajectories of ...