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sample
Rare Asteroid Sample Contaminated by Microorganisms Despite Scientists' Best Efforts
Researchers found evidence of microbial life in what should have been a pristine sample of an asteroid, a frustrating sign that avoiding earthly contamination may be harder than we thought. A…
Covid sample in Michigan first to contain mutations of BA.X after expert warned the
A new Covid variant that could spark a fresh wave of infections has been detected in the US, health officials say — as they begin to monitor the mutant strain.Researchers tracking the variant — dubbed BA.X, or BA.2.86 — say a case has…