NASA scientists are examining a recently detected cosmic object that appears to defy established principles of celestial classification. The red sphere, officially identified as CWISE J1249, was spotted using the agency’s Wide-field Infrared Survey Explorer (WISE) and has since raised questions about how objects in space are categorized.
Spectroscopic data revealed three characteristics that complicate classification: extremely low mass, minimal metal content, and an infrared signature unlike those associated with known planets, stars or substellar bodies. Despite these unusual traits, WISE detected internal heat, an indication that the object is structured rather than an aimlessly drifting fragment.
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The mass recorded is far below what astronomers would expect of a star, while the low metal content does not align with a planetary body. Scientists noted that the infrared pattern does not match output typically generated by familiar types of stellar or planetary objects.
Compounding the mystery is its speed. CWISE J1249 is estimated to be traveling at more than one million miles per hour, a rate that would be considered unconventional even for fast-moving stars or planets.
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Researchers are considering two potential explanations. One theory suggests the object might be a fragment of a white dwarf supernova, expelled during the collapse of its parent star. Another possibility is that it could be a failed star or an ejected planet that never accumulated enough mass before being forced out of its system. In the original research summary, scientists said the discovery “defies everything that is known.”
Neither hypothesis fully incorporates all observed data, and its composition, history and behavior remain unresolved. CWISE J1249 is expected to be the subject of continued analysis as astronomers attempt to adjust existing models or develop new ones to explain the object’s properties.
Source: Times of India