Europe’s Euclid optical space telescope discovers 31 new quasars in the very early universe
The uncertainty of science: The Europe Space Agency’s (ESA) Euclid optical space telescope — with a mirror half the size of Hubble’s — has now identified 31 new quasars in the very early universe, all of which really shouldn’t be there based on present theories as to how long it should take for them to form.
The European Space Agency’s Euclid space telescope has discovered 31 of the most ancient quasars ever found. Two of these giant and dazzling galaxy cores, powered by gargantuan black holes, are the earliest quasars yet observed in cosmic history. They shone with the light of a trillion Suns back when the Universe was 670 million years old – just 5% of its current age.
UPDATE: Astronomers using the Keck telescopes in Hawaii have now confirmed 21 of the 31 one quasars identified by Euclid.
The scientific problem is that, according to most theories on the evolution and formation of galaxies and black holes and quasars, it takes billions of years for such large supermassive black holes to accrete their mass. Yet, these exist less than a billion years after the Big Bang. The numbers do not compute.
Euclid doesn’t get the publicity of Hubble, partly because ESA does not as good a job of selling its work as NASA, partly because it is a European project and the American propaganda press is thus generally uninterested, and partly because it is simply smaller and a later telescope, thus not ground-breaking. Nonetheless, with a mirror 1.2 meters across, it is capable of truly spectacular optical astronomy, being above the atmosphere as well as above the many satellite constellations now in orbit. It is placed in the Lagrange point 2, a million miles from Earth.
In fact, Euclid is exactly the kind of space telescope the astronomy community should be building, in huge numbers, rather than whining about those satellite constellations blocking its big ground-based telescopes. The future of astronomy is in space, and it is high time astronomers recognized this.
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Indeed. Well said.
The usual answer to this appears to be that to do the most bleeding-edge science they have to have the most bleeding-edge equipment, even as they leave plenty of science undone that won’t be as sexy but can still be interesting and productive.
Actually, the real reason astronomers continue to push ground-based telescopes is more mundane. They are protecting their turf. Many are tightly captured by the bureaucracy of these ground-based telescopes and the infrastructure to build them. To switch to space-based telescopes means abandoning that infrastructure, from which their prestige and power comes.