Its had to be shut down as early as the full service in early 2010. One of Nassa ‘s spearheads was Hubble Space Telescope turned 20 in 2010.
For years, Hubble has lived an extension. It has taken amazing pictures of space more and more. Thousands have become pregnant.
Now Hubble’s image stream has slowed down. The telescope has remained in the dark for exactly a month.
Is this the end of Hubble? If so, however, it came as a stealth, with Hubble’s computers crashing.
Hubblea next air traffic control At Goddard Space Center In Maryland, USA, on Sunday, June 13, he noticed that the space telescope’s computer was not working normally.
The engineers initially suspected that the cause of the fault was in Hubble’s memory module. It was replaced by a backup. Several attempts to exchange memories on June 16 and 17 failed
When the fault began to be properly investigated, darkness also came. Hubble’s treasure, its 2.4-meter-diameter mirror telescope, was closed, as were its many cameras and measuring devices.
Old the trick to service Hubble was once a space shuttle maintenance flight to Hubble. Worn parts were replaced.
In space walks, old equipment was pulled out of the hull and new ones were pushed into place. Naps, a bit like chest of drawers would be swapped. Of course, some were repaired on the spot, from the flight.
Electrically stabilizing the position of the space telescope gyroscopes, for example, were renewed as early as November 1999. There were six in all, and they began to go out one at a time.
However, the space shuttles were taken to Earth forever at the shipyard in 2011. As a result, the maintenance flights also ended by force.
Hubblen all problems must now be solved on earth. Solutions and tests are sent to Hubble’s computer with command instructions.
They are being considered by a group of space engineers at the Goddard Space Flight Center in Nassau, Maryland, USA.
The fault is in the computer, it is known. But where in the computer room?
It was sometimes thought that the disturbances were due to power supply problems. The fault could also be hidden in the computer control unit, tell Nasa’s website.
One problem is that Hubble computers began to be custom developed as early as the 1970s. They were assembled using 1980s techniques and materials.
Hubblen the computer was originally called the Standard Spacecraft Computer 1.Its hardware and software were upgraded back in 2009 on a maintenance flight.
At Goddard Center, a team of engineers is designing tests to find the core of the problem.
If the fault cannot be rectified with program snippets, the backup or parts of it must be replaced. The copy is in Hubble’s body and has already been used.
The main unit of the computer was changed in 2009 on a maintenance flight from the A side to the so-called B side, as Nasa itself calls the change. Since then, Hubble has been guided by the original but B-side backup.
Nasan engineer Paul Hertz says New Scientistthat engineers have exchanged A-side A-side files that are identical during the month.
This is how they have tried to figure out which part of the B-side is scattered. The investigations have not been successful.
Files changing exposes the machine to risks, Hertz says. The current A-side when never before turned on in space. However, there are hardly any alternatives.
“The only thing we can do is control the computer with commands. You cannot take the device in your hands and replace its parts. Nor can you experiment with the current voltage in different parts of your computer, ”Hertz describes the lack of options.
The troubleshooting has already been going on for a month, as after each attempt, the continuation has been carefully considered. In addition, programs need to be run and tested to see if they work.
“In the end, everything goes scattered. Even if everything is backed up with copies, the equipment will eventually fail, whether it’s a gyroscope or a computer, ”Hertz reminds us of the equipment’s wear and tear – in extreme cold.
“The phenomenon is exactly the same as at home. Some lamp will eventually light up first. ”
If Hubble is now finally simmering, it’s literally driven down. It is guided lower in the Earth’s orbit.
Below, increasing atmospheric drag and friction heat the device. Eventually, the billion-dollar device will burn to ashes.
Admittedly, some romantic has suggested that Hubble should be rescued and brought back to earth.
Sure, it would be an absolute attraction in any museum. But who would pay to charter it down?
Emergency is not quite like Hubble. The telescope will be replaced by something new and better by the end of the year, Nasa promises.
Hubble follows space telescope James Webb, visited Hubble how it went.
Its 6.5-meter main mirror has already been scythe and opened many times in experiments, as a masterpiece of packaging and origami. It will soon be placed on top of a launch vehicle.
It will rise into space in November from French Guiana. The rise is guaranteed by the European Space Agency’s Esan Ariane rocket.
James Webb’s export into space has been delayed several times. It’s years late. Now it looks like this Hubble heir is actually leaving in November.
James Webb is named One Director of NASA (1906–1992) by.
The web is not serviced. Its place in space is far too far away. Webb, or JWST for short, is taken about 1.5 million miles away in one of the so-called Lagrange points. There it observes space almost stationary.
Sure it is still possible for Hubble and James Webb to describe space together, and the same subject at the same time.
The collaboration would be worthwhile, as Webb shoots at different wavelengths than Hubble. It mostly describes space at infrared wavelengths.
Hubble’s optics are suitable for the human eye. Hubble’s pictures are the most spectacular gift to the audience. They have also illustrated 21st century astronomy and school textbooks. new.
However, Webb’s images provide new and better information about distant objects. We also get to know a lot more about the gas rings of exoplanets, for example.
Hubble’s best for 30 years
The Hubble Space Telescope has captured so many phenomena from space that the list is exhausting. Here’s the top of Hubble’s most popular images.
The pillars of creation. In April 1995, Hubble photographed the birthplace of the stars from the Eagle Nebula in space. It rises in the dimensions of light years up like columns. It quickly got the name Creation Pillars, or Pillars. The image has been endlessly copied into posters, fabrics, t-shirts and mugs, for example, in different versions.
Deep Field. In January 1996, Nasa released its first Deep Field image. Hubble filmed a seemingly empty space for more than 10 days. The picture stunned. It was full of young galaxies in their various forms and stages of development. They were endless. This is what the young universe looked like!
Comet Shoemaker-Levy. In July 1992, a large comet struck Jupiter. The gravity of the gas giant sucked and crushed it. The shock was predictable. Hubble was directed to describe the devastation. A huge black west remained in the gas giant tracks for weeks as the comet’s dust mixed with the surface gases.
Hubble has measured and described the age and expansion of the universe, black holes, dark energy, galaxy formations, and exoplanets, among others.