The James Webb Space Telescope observed 13-billion-year-old light, using a closer galactic cluster like a magnifying glass.
An interstellar comet that recently passed through the solar system may have formed as long as 12 billion years ago, making ...
3I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...
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