Hubble Space Telescope

The Hubble Space Telescope is a space-based observatory launched in 1990, while Mount Palomar Observatory is a ground-based observatory located in California. Hubble can observe from above the Earth's atmosphere, providing clearer images in some wavelengths, while Mount Palomar has a larger mirror and can observe fainter objects in certain wavelengths but is limited by atmospheric interference. Both telescopes have contributed significantly to astronomical research and discoveries.

The Hubble space telescope changed the way we look at our universe. It revolves directly above our earth it was the first telescope that took amazing pictures of far away galaxies and dust and gas figures. The Hubble telescope was created by Edwin P. Hubble.

The primary mirror of the HST has a diameter of 2.4 m; the secondary mirror measures 30 cm in diameter.

The Hubble telescope was launched in 1990, but faulty optics limited its use until a shuttle mission made repairs in 1993. Other servicing missions improved its onboard instruments. It will be mostly superseded by the James Webb Space Telescope planned for launch around 2018.

Yes, there are several celestial events of importance this year, including meteor showers like the Perseids in August, the Geminids in December, and the solar eclipse in December. There are also various planetary conjunctions and the peak of the Leonid meteor shower in November.

The NASA Kepler Space Telescope was designed and built by Ball Aerospace and Technologies Corp. It launched in 2009 with the goal of searching for Earth-sized planets in or near the habitable zone of other stars. It was named after the renowned astronomer Johannes Kepler.

The primary mirror had been ground too flat at the edge (by 2 µm; i.e. 1/50th of the width of human hair!), producing spherical aberration (light at the edge of the mirror is focused at a different point as the light in the center of the mirror), actually visible as flawed images.

The Cassegrain reflector (= the primary mirror) actually is a concave system.

Above all the position in space, with the absence of a disturbing atmosphere, is the prime factor of the excellent pictures. This is also the reason why it was built at all. Of course, the larger the instrument the better for observations.

Edwin Hubble received numerous awards throughout his career, including the Gold Medal of the Royal Astronomical Society and the Bruce Medal. He also had a comet and an asteroid named after him in recognition of his contributions to astronomy.

HST's Science Instrument Control & Data Handling unit (SIC & DH) is the primary system for synchronizing all science instruments, data storage, and processing for transmission to NASA ground controllers.

Scientists have used the Hubble Space Telescope to make numerous groundbreaking discoveries, including the expansion rate of the universe, the age of the universe, and the existence of supermassive black holes. Hubble has also provided detailed images of distant galaxies, nebulae, and planets within our own solar system, leading to a better understanding of the cosmos.

The Hubble Space Telescope was launched in 1990 to provide unprecedented views of the universe from space, free from the distortion of Earth's atmosphere. It was designed to advance our understanding of the cosmos and revolutionize astronomy by capturing high-resolution images and data of celestial objects.

The Hubble Space Telescope was made to observe the universe from space without atmospheric interference, providing clearer and more detailed images of celestial objects. Its design allows it to capture high-resolution pictures across multiple wavelengths of light, helping scientists to study various aspects of the universe such as galaxies, stars, and planets.

HST is made up of many materials, but like all spacecraft/satellites, its primary housing, base structure, and instrument housings are made of a high temper Aluminum Alloy (6061-T3, etc), and in some cases Titanium. All surfaces are corrosion protected (yes, things rust in space, albeit slowly). Those materials make up the bulk of HST's structure. As it is designated a high-visibility program, its QA and Manufacturing standards for all devices is much higher than normal, approaching that of Manned Flight programs. Every solder joint, wire, wire strand, crimp, part, screw, washer, nut, etc., must be individually inspected prior to assembly, and then further inspected as a unit. From personal experience working on the HST program, I can tell you there's no room for error.

During Servicing Mission 3A, we installed a device that's an oddity in spaceflight - the NICMOS Cryocooler unit, which is a high-speed turbine cryogenic pump which pumps liquid helium through the NICMOS cooling tubes used to originally freeze its liquid nitrogen source. Devices with moving parts aren't used on satellites since they can't be repaired, and with HST it's even rarer since moving parts tend to cause vibration, something you don't want on a telescope. However, the NCS turned out to work better than expected, reviving the dead NICMOS camera.

The Hubble Space Telescope orbits the Earth every 97 minutes at an altitude of about 547 kilometers. It travels at a speed of over 27,000 kilometers per hour, allowing it to observe different parts of the sky continuously.

The door on the Hubble Space Telescope covers the aperture to protect the sensitive instruments and optics inside from potential damage when not in use. By keeping the aperture covered when not observing, the door helps to shield these components from hazards such as micrometeoroids and sunlight that could degrade its performance.

The Hubble Space Telescope orbits Earth at an altitude of about 547 kilometers (340 miles). It does not travel through space like a spacecraft on a journey to another celestial body, but continuously orbits Earth in order to observe the universe.

HST didn't get extra panels; the original arrays were replaced during HST Servicing Mission 2 in 1997, due to extreme warping of the arrays caused by thermal changes in space as HST moved through the Earth's terminator (the point in orbit where night becomes day, and day becomes night) every 97 minutes.

The replacement arrays were themselves replaced on one of the last 2 servicing missions, to ensure power for as long as possible until HST is brought down in the next few years.

if you are looking at space from earth with a telescope your view will have to go through the earth atmosphere.... and for that the less brighter object in space will be blocked by the atmosphere... polutions etc....

but space telescope like hubbles... etc are situated in outer layer of our earth atmosphere..... thats why through it we can observe much clear space view....

Water cannot move freely if it is contained or obstructed by physical barriers such as walls or containers. Additionally, factors like gravity, surface tension, and viscosity can influence the movement of water in various directions.

The answer is very simple: ANY telescope on earth, under the best possible circumstances, is looking through earth's atmosphere. Imagine trying to see the fine detail in anything looking up at it from the bottom of a swimming pool. That's an earthbound telescope. The Hubble does not have any atmosphere affecting it's view - which gives it 20/20 or better vision. Earthbound telescopes? 20/40 on their very best nights, usually more like 20/60.

According to internet record it is or was 347 miles, had a gross weight of 24.500 lb and velocity at 25.000 ft/sec. The accelleration of g at that altitude would then be 27.23 ft/sec/sec.

The Hubble Space Telescope is a space telescope, not a space station or a space shuttle. It was launched into space in 1990 and orbits the Earth, capturing images of the universe. The telescope has provided valuable insights into the cosmos and has been serviced multiple times by space shuttle missions.

Yes, the Hubble Space Telescope was launched with a flawed primary mirror rather than a missing lens. The mirror had a manufacturing error that affected its shape, leading to blurred images initially. This was rectified through a repair mission in 1993, successfully improving the telescope's performance.