Tag: Galaxy

The 11 most exciting space photos of 2020

The universe has infinite beautiful wonders. Throughout this infinite universe, it is beautiful, frightening and awe-inspiring. From huge black holes to interacting galaxies, to stars that burn their lives in a spectacular starlight show, the miracles in space are beyond our imagination. Here, we have compiled the most fascinating glimpses of the universe that astronomy will give us in 2020. 11.


NASA’s new space telescope SPHEREx will uncover the secrets of the Big Bang

Visit: JD PLUS members New Year’s Day promotion: 148 yuan for video dual members get 30 yuan red envelope without threshold Alibaba Cloud “explosive special offer” theme activity-cloud server as low as 0.55 off 96 yuan / year

To this end, the space agency designed a space telescope, which Will be able to probe the universe, looking for evidence of those earliest moments. NASA has announced that its telescope construction program-cosmic history spectrophotometer, reionization era and ice probe (SPHEREx) is progressing well.

The agency will start the final design work and begin construction of the telescope, hoping to launch the telescope between 2024 and 2025. The SPHEREx space telescope is expected to be the size of a “subcompact car”. According to a recent NASA announcement, it will “map the entire sky four times and build a huge database, including stars, galaxies, and nebulae (gas in space). And dust clouds) and many other celestial bodies”.

If everything goes according to plan, SPHEREx will Become NASA’s first mission to create a “near-infrared full sky spectrogram”, observing a total of 102 near-infrared colors.

“It’s like going from black and white images to color images,” explained Allen Farrington, SPHEREx project manager.

SPHEREx’s first task is to find what NASA said “evidence of what may have happened in less than one billionth of a second after the Big Bang.”

By mapping billions of galaxies in the universe, NASA hopes to find statistical patterns to help explain what happened immediately after the Big Bang, when the universe was expanding rapidly. The newly created map will also help find water ice and frozen organic molecules around newly formed stars.

NASA also hopes to use SPHEREx to discover more information about the formation of galaxies, and perhaps discover how some of the earliest galaxies created stars.


The mystery of the lack of dark matter is explained! Hubble Space Telescope makes new achievements

In 2018, with the help of the Hubble Space Telescope and several other observatories, an international research team discovered a galaxy with almost no dark matter in the universe named NGC 1052-DF2. The galaxy lacks dark matter? This completely deviates from our current understanding. You know, if there is no dark matter to provide additional gravity, galaxies will fall apart.


Is the missing ordinary substance finally seen directly?

Recently, French astronomers finally directly observed the warm intergalactic medium, which is the possible composition of the missing baryon matter. The simulation of warm intergalactic gas (picture source:Wikipedia) baryonic matter, which is the ordinary matter that we can come into contact with in our daily life, accounts for only 4.9%of the mass of the universe. But even with this 4.9%, not all of them were discovered.