The Hubble Space Telescope was primarily designed to study the formation and evolution of galaxies, as well as the properties of stars, planets, and other objects in the universe.

The Hubble Space Telescope was launched on April 24, 1990, aboard the Space Shuttle Discovery.

The Hubble Space Telescope orbits Earth at an altitude of approximately 547 kilometers (340 miles), which is considered low Earth orbit.

The Hubble Space Telescope's primary mirror has a diameter of 2.4 meters (7.9 feet), which is relatively small compared to ground-based telescopes.

The Wide Field and Planetary Camera 2 (WFPC2) was the Hubble Space Telescope's main scientific instrument at launch and was responsible for capturing many of the telescope's most iconic images.

The Hubble Space Telescope was originally designed for a 10-year mission, but it has been extended several times and is now expected to operate for at least 30 years.

The Hubble Space Telescope's most significant contribution to cosmology is its measurement of the expansion rate of the universe, which led to the discovery of the accelerating expansion of the universe.

The Hubble constant is a measure of the rate at which the universe is expanding, and it is one of the most important numbers in cosmology.

The current value of the Hubble constant is approximately 70 kilometers per second per megaparsec, which means that for every megaparsec (3.26 million light-years) of distance, galaxies are moving away from us at a speed of 70 kilometers per second.

The accelerating expansion of the universe is a major mystery in cosmology, and it is thought to be caused by a mysterious force called dark energy, which makes up about 70% of the energy in the universe.

Dark energy is a type of energy that is associated with the expansion of the universe and is thought to be responsible for the accelerating expansion of the universe.

The fate of the universe is still unknown, but the current evidence suggests that it will continue to expand forever, driven by the accelerating expansion caused by dark energy.

The Hubble Deep Field is an image of the most distant objects in the universe, taken by the Hubble Space Telescope over a period of 10 days in 1995.

The Hubble Deep Field revealed the existence of galaxies that are much older than previously thought, dating back to within a few hundred million years of the Big Bang.

The Hubble Space Telescope is expected to be replaced by the James Webb Space Telescope, which is scheduled to launch in 2022.