Florida: Space scenes can now be seen in much more clarity and colors. US President Joe Biden will release the latest images taken by the new James Webb Telescope at 7am on Tuesday. 

"We're going to give humanity a new view of the cosmos," NASA administrator Bill Nelson said. The image will reveal some of the earliest galaxies and stars that formed after the Big Bang 13.8 billion years ago.

Launched on Christmas Day last year, the JWST is the biggest and most powerful telescope ever put into space.

Since then, scientists from NASA, the European Space Agency, and the Canadian Space Agency have been testing its four instruments and aligning the 18 sections of its 6.5-metre gold-plated mirror.

The telescope uses infrared cameras and sensors to peer into parts of the universe with detail that no other telescope can see.

In March, the team released a crisp test-image of a star 2,000 light-years away, against a background of ancient galaxies billions of light-years away, providing the first taste of what JWST could do.

Then in June, a micro meteorite dinged one of the segments, just before the telescope started taking its first set of full-resolution images we're about to see.

Despite this, scientists say it is performing twice as well as expected.

To understand that, we need to look back at some images taken by the Hubble Space Telescope over the years.

The earliest galaxies we've been able to see so far existed between 400 million to 800 million years after the Big Bang.

These galaxies were captured by the Hubble Space Telescope in a famous image called the Ultra Deep Field.

The JWST can detect objects in much longer wavelengths than the Hubble, so it can peer further back in time, and promises to fill in the critical gap between the Big Bang and the earliest galaxies and stars detected by Hubble.