  A novel method for extracting cosmological evolution parameters is proposed,
using a probe other than light: future observations of the diffuse
anti-neutrino flux emitted from core-collapse supernovae (SNe), combined with
the SN rate extracted from future SN surveys. The relic SN neutrino
differential flux can be extracted by using future neutrino detectors such as
Gadolinium-enriched, megaton, water detectors or 100-kiloton detectors of
liquid Argon or liquid scintillator. The core-collapse SN rate can be
reconstructed from direct observation of SN explosions using future precision
observatories. Our method, by itself, cannot compete with the accuracy of the
optical-based measurements but may serve as an important consistency check as
well as a source of complementary information. The proposal does not require
construction of a dedicated experiment, but rather relies on future experiments
proposed for other purposes.
