Month: August 2026

1. Hubble Space Telescope (HST)Deployed in 1990, the Hubble Space Telescope revolutionized contemporary astronomy by operating outside Earth’s atmosphere, thereby removing atmospheric interference. Featuring a 2.4-meter primary mirror alongside instruments capable of detecting visible, ultraviolet, and near-infrared radiation, Hubble has accumulated upwards of 1.5 million scientific observations.Key achievements include:Accurate determination of how fast the cosmos expands.Deep field snapshots uncovering thousands of remote galaxies.Data indicating that colossal black holes reside at galactic cores.Hubble’s longevity and service missions made it one of the most scientifically productive instruments ever built.2. James Webb Space Telescope (JWST)Launched back in 2021, the James Webb Space Telescope…

1. Sputnik 1 (1957)Sputnik 1, launched by the Soviet Union on October 4, 1957, was the first artificial satellite to orbit Earth. Weighing 83.6 kilograms, it transmitted simple radio pulses that could be detected worldwide. Its success marked the beginning of the Space Age and triggered the Cold War–era space race between the Soviet Union and the United States. Beyond its political impact, Sputnik demonstrated that rockets could place objects into orbit, laying the technological foundation for all future space missions.2. Vostok 1 (1961)On April 12, 1961, Vostok 1 carried Yuri Gagarin into orbit, making him the first human in…