One of the most surprising cosmological discoveries in recent decades has been the accelerated expansion of the Universe. The first convincing measurement of cosmic acceleration came from observations of distant type Ia supernovae, which appeared less luminous than expected [Riess et al. 1998, Perlmutter et al.1999]. These observations can be explained by either modifying General Relativity on cosmological scales, or by postulating that 70 per cent of the Universe is dominated by a new component called “dark energy” with the unusual physical property that it opposes the attractive force of gravity on cosmological scales. Cosmic acceleration is one of the most important issues to be explored by modern observational cosmology. The implications of the acceleration of the expansion of the Universe have inspired ambitious experimental programs to understand the physics of this phenomenon. in addition to supernovae, there are several other prominent probes that allow us to extract information about the equation of state of dark energy. Four probes were cited by the Dark-Energy Task Force (DETF) to explore dark energy: weak lensing, supernovae, galaxy clusters and Baryonic Acoustic Oscillation. In this talk I will review the status of the four most well established methods for exploring dark energy. I will also review the current and future experiments designed for decrypting the dark energy, particularly I will focus in the galaxy surveys BOSS,eBOSS and DESI.