If the pictures were taken millions of light-years away, then maybe these objects no longer exist?
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Astrophysicist Robin Cook of the University of Western Australia said astronomers are actually historians.
“The further we look into the universe, theevents that took place there. This is because light takes time to travel from the object to us. This means that the light we see from these colliding galaxies came from them 290 million years ago,” Cook said.
Photo: NASA
According to him, this system most likely looks very different for the inhabitants of the planets closest to it.
Can Webb find orphan planets?
Rogue planet or wandering planet, akaAn orphan planet is a planet that does not orbit its star. Instead of a star, such a planet rotates around the galactic center of the galaxy or floats freely between galaxies in intergalactic space.
Jonty Horner, astrobiologist and astronomer fromUniversity of South Queensland, says that "James Webb" is unlikely to be able to detect planets in other galaxies, but there is a chance that it can find free-floating planets or orphan planets.
“Webb will not be looking for new planets.This would require astronomers to spend a lot of precious time. Most likely, the telescope will study known objects to learn more about them,” Horner said.
According to him, "Webb" is simply not designed to discover new planets. Although there is always a chance that he might accidentally find some of them.
“In this way the telescope will help us to learn a lotinformation about exoplanets, but it will be a poor search tool. However, all my predictions may turn out to be wrong, so no one knows for sure, ”he said.
What does space look like inside a nebula?
Astronomer Kim-Wee Tran from UNSW says that if a person were in a nebula, he could observe the universe through a cloud of gas, like a beacon in the middle of a fog.
“But if you happened to be near one of these huge and very hot stars, you would be hit by radiation equal to an infinitely huge ultraviolet index!” Tran said.
So, most likely, this is not the place to move to in the near future.
Photo: NASA
What is it like to live on a planet in one of the galaxies in Stefan's Quintet?
Stephen's Quintet is a group of five galaxies in the constellation Pegasus.
Astronomer Kim-Wee Tran has stated that if you live on one of the planets in Stefan's Quintet, you'll have excellent night vision, especially if you have infrared eyes.
“These galaxies are scattered across the sky, so together they will look the same as different parts of our Milky Way,” Tran explained.
Photo: NASA
According to him, if a person observes the center of our galaxy in visible light, he will see little due to the large amount of dust. But infrared light passes through dust perfectly.
Сколько лет разным звездам на фотографии?
Astronomer Robin Cook from the University of Western Australia says stars burn in different colors depending on their age.
“Blue stars are very young and hot, soconsume their fuel quickly. Red stars, perhaps contrary to common sense, are older and colder. When astronomers collect all the light from the stars in galaxies, they can usually infer the average age of the system based on the color. In our case, it is 290 million years old, which is a relatively young age,” says Cook.
Photo: NASA
Why does the telescope take pictures in these colors and shades?
ABC Senior Science Reporter Jenelle Veulesays the telescope's images were taken in infrared light. These are very long wavelengths of light, beyond what the human eye can see.
"But the team used blue, green and redfilters for converting infrared wavelengths into colors. It's like looking at something in infrared vision and then translating the image into colors that you can recognize,” Veule explains.
Photo: NASA
Where is the telescope now?
Now Webb orbits the Sun 1.6 million km from Earth, in a region of space called the second Lagrange point.
Lagrange points are a place in space where objects sent there tend to stay put.
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