In 1181 AD, a bright "guest star" was observed to linger in the sky for around six months. Nearly 850 years later, the likely remnants of this event were rediscovered and tentatively linked to the ...
Check out this just-released picture of globular cluster NGC 1806, created to look for evidence of MACHOs (massive compact halo objects) but none were found. No doubt this will spark yet another round ...
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