The little sibling of the big rip singularity

Understand

We present a new cosmological event, which we named the little sibling of the big rip.

• This event is much smoother than the big rip singularity.
• When the little sibling of the big rip is reached, the Hubble rate and the scale factor blow up but the cosmic derivative of the Hubble rate does not.
• This abrupt event takes place at an infinite cosmic time where the scalar curvature explodes.