What major problem did the Hubble telescope originally have and how was it corrected?

Hubble’s main mirror had a major defect, a spherical aberration caused by a manufacturing error. The flaw was just 1/50th the thickness of a sheet of paper. It took three years before NASA could mount a repair mission.

It was finally launched by Space Shuttle Discovery in 1990, but its main mirror had been ground incorrectly, resulting in spherical aberration that compromised the telescope’s capabilities. The optics were corrected to their intended quality by a servicing mission in 1993.

One may also ask, how was the Hubble telescope made? The Hubble Space Telescope is a large telescope in space. It was launched into orbit by space shuttle Discovery on April 24, 1990. Hubble takes sharp pictures of objects in the sky such as planets, stars and galaxies. Hubble has made more than one million observations.

In respect to this, how was the Hubble telescope fixed?

NASA sent up astronauts in the space shuttle Endeavour to manually repair the telescope. Five space walks later, the astronauts completed the repairs. They installed a device containing 10 small mirrors that intercepted the light from the primary mirror and corrected the pathway to the sensors.

What did the company that made the Hubble’s mirror not tell NASA?

NASA has established how a mirror aboard its $1.5 billion Hubble Telescope came to be the wrong shape. The agency said last week that errors in a test instrument apparently led Perkin-Elmer, which fabricated the optics, to finish the 2.4-metre primary mirror of the Hubble Space Telescope incorrectly.

Can Hubble be seen from Earth?

Hubble is best seen from areas of the Earth that are between the latitudes of 28.5 degrees north and 28.5 degrees south. This is because Hubble’s orbit is inclined to the equator at 28.5 degrees. So northern parts of Australia have great access to seeing the HST and can catch the telescope flying right overhead.

How far can Hubble see?

about 10-15 billion light-years

Who made the Hubble telescope lens?

Shortly after the Hubble Space Telescope’s launch in 1990, operators discovered that the observatory’s primary mirror had an aberration that affected the clarity of the telescope’s early images. Hubble’s primary mirror was built by what was then called Perkin-Elmer Corporation, in Danbury, Connecticut.

How long will Hubble last?

five years

Where is Hubble telescope located?

Wilson Observatory near Pasadena, Calif., to discover galaxies beyond our own. Hubble, the observatory, is the first major optical telescope to be placed in space, the ultimate mountaintop.

What is the Hubble mirror made of?

Instead of a solid core, Hubble’s primary mirror has a honeycomb core, reducing its weight from 8,000 pounds (3,636 kg) to 1,800 pounds (818 kg). Both mirrors are coated with thin layers of aluminum and magnesium fluoride.

How was the Hubble Deep Field image taken?

The image was assembled from 342 separate exposures taken with the Space Telescope’s Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and 28, 1995. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure.

How old is the universe?

13.772 billion years

When was Hubble last serviced?

Servicing Mission 4 (SM4): May 11-24, 2009 The Hubble Space Telescope was reborn with Servicing Mission 4 (SM4). The fifth and final servicing of the orbiting observatory flew aboard space shuttle Atlantis (STS-125) May 11–24, 2009.

When was Hubble fixed?


Why was Cassini destroyed?

The Cassini space probe was deliberately disposed of via a controlled fall into Saturn’s atmosphere on September 15, 2017, ending its nearly two-decade-long mission. This method was chosen to prevent biological contamination of any of the moons of Saturn now thought to offer potentially habitable environments.

How much did it cost to repair the Hubble telescope?

If detected prior to launch, the repair would have cost $2 million, an investigation into the cause of the flawed mirror found. But with Hubble orbiting 355 miles above Earth, NASA decided to fix it during the planned 1993 servicing mission.

Who repaired the Hubble telescope?

Repairing the Hubble Space Telescope: The Tools Astronauts Used. NASA astronauts John Grunsfeld and Steven Smith upgrade the Hubble Space Telescope during the STS-103 servicing mission to the observatory in December 1999. Astronauts serviced the telescope during five space missions from 1993 through 2009.

What will replace the Hubble telescope?

The James Webb Space Telescope (JWST or “Webb”) is a space telescope that is planned to be the successor to the Hubble Space Telescope. In March 2018, NASA delayed the launch after the telescope’s sunshield ripped during a practice deployment.