Largest celestial object of its kind discovered in the distant universe
Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...
One large Milky Way galaxy or many galaxies?
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
Tiny Telescope, Big Discoveries: How ExTrA Hunts for Earth-Like Worlds
Using clever light-detecting techniques, ExTrA searches red dwarf stars for planets that might support life. By studying tiny ...
Euclid Telescope Spots Einstein Ring Wrapped Around a Galaxy
The structure is nearly 600 million light-years from Earth and is an early display of the nascent dark matter telescope's ...
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What is the Extremely Large Telescope?
A: The Extremely Large Telescope is planned to be one of the most capable astronomical observatories ever assembled. The telescope, currently about 60% complete, is intended to search for evidence ...