A tiny shift exposes a cold brown dwarf masquerading as an early galaxy
A faint red object spotted by the James Webb Space Telescope originally appeared to offer a possible glimpse of the universe's first galaxies. But images taken …
A faint red object spotted by the James Webb Space Telescope originally appeared to offer a possible glimpse of the universe's first galaxies. But images taken about 3½ years apart revealed a giveaway: The object, nicknamed Capotauro, had moved.
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