Comet Nishimura encountered serious resistance from charged particle explosions (CMEs) and plasma effects from the Sun and lost its tail.

Astrophotographer Michael Jaeger recorded a solar storm "swallowing" the comet and losing part of its tail.

Disconnection event
Former NASA astronomer Tony Phillips described the phenomenon as a 'disconnection event' on "It's caused by a CME hitting the comet or the impact of a fast solar wind flow," he said.

Nishimura's tail began to elongate again after the event. However, this elongation may not be permanent because more CMEs are on the way.

It will pass very close to Earth

Comet Nishimura will pass close to Earth on September 12 and then return to deep space on September 17, making a loop around the Sun.