NASA's James Webb telescope spotted a strange 13 billion-year-old galaxy that shouldn't exist

• NASA's James Webb Space Telescope spotted a 13 billion year old galaxy that defies understanding. 
• ZF-UDS-7329 seems to be bigger than the Milky Way, which scientists thought was impossible that early on.
• The observation could upend what we know about how dark matter shaped the early universe.

NASA's new space telescope spotted a 13 billion-year-old galaxy that is much too complex to exist that early in the universe.

The galaxy, which is bigger than the Milky Way, could upheave what we know about how dark matter shaped the early universe.