Galactic winds are the primary mechanism by which energy and metals are recycled in galaxies and deposited into the intergalactic medium. New observations reveal their ubiquity, especially at high redshift. This review discusses the physics behind these winds, observational evidence in nearby and high-redshift galaxies, and their implications for galaxy and intergalactic medium evolution. It concludes with challenges for future research. Galactic winds are driven by stellar winds, supernovae, and active galactic nuclei (AGN). Stellar winds and supernovae provide mechanical energy and momentum, while AGN accretion can drive powerful outflows. The energy from these processes heats and accelerates gas, creating bubbles that expand and eventually escape the galaxy. Hydrodynamical simulations show that these winds can reach large scales and influence the intergalactic medium. In the Large Magellanic Cloud, the 30 Doradus region is a starburst site with massive stars and superbubbles. The Galactic Center shows energetic activity, with powerful outflows possibly driven by a central black hole or young star clusters. Observational techniques, including multiwavelength surveys and absorption-line studies, have detected galactic winds in star-forming galaxies. These winds often have bipolar morphologies and are detected through emission-line features and kinematic signatures. The detection rate of galactic winds is linked to starburst strength, with high starburst galaxies showing more frequent and powerful outflows. Morphologically, these winds often exhibit complex structures, ranging from egg-shaped superbubbles to bipolar double-loop shapes. The kinematics of these winds are influenced by the galaxy's disk and halo, with some winds showing signs of interaction with the intergalactic medium. The significance of galactic winds lies in their role in feedback processes, influencing galaxy evolution and the intergalactic medium. Future research will focus on understanding the detailed physics of these winds, their impact on galaxy structure, and their role in the broader cosmic environment. Observational and theoretical challenges remain, particularly in resolving the complex dynamics and energetics of galactic winds across different galactic environments.Galactic winds are the primary mechanism by which energy and metals are recycled in galaxies and deposited into the intergalactic medium. New observations reveal their ubiquity, especially at high redshift. This review discusses the physics behind these winds, observational evidence in nearby and high-redshift galaxies, and their implications for galaxy and intergalactic medium evolution. It concludes with challenges for future research. Galactic winds are driven by stellar winds, supernovae, and active galactic nuclei (AGN). Stellar winds and supernovae provide mechanical energy and momentum, while AGN accretion can drive powerful outflows. The energy from these processes heats and accelerates gas, creating bubbles that expand and eventually escape the galaxy. Hydrodynamical simulations show that these winds can reach large scales and influence the intergalactic medium. In the Large Magellanic Cloud, the 30 Doradus region is a starburst site with massive stars and superbubbles. The Galactic Center shows energetic activity, with powerful outflows possibly driven by a central black hole or young star clusters. Observational techniques, including multiwavelength surveys and absorption-line studies, have detected galactic winds in star-forming galaxies. These winds often have bipolar morphologies and are detected through emission-line features and kinematic signatures. The detection rate of galactic winds is linked to starburst strength, with high starburst galaxies showing more frequent and powerful outflows. Morphologically, these winds often exhibit complex structures, ranging from egg-shaped superbubbles to bipolar double-loop shapes. The kinematics of these winds are influenced by the galaxy's disk and halo, with some winds showing signs of interaction with the intergalactic medium. The significance of galactic winds lies in their role in feedback processes, influencing galaxy evolution and the intergalactic medium. Future research will focus on understanding the detailed physics of these winds, their impact on galaxy structure, and their role in the broader cosmic environment. Observational and theoretical challenges remain, particularly in resolving the complex dynamics and energetics of galactic winds across different galactic environments.