
Mars spiderwebs, Kazakhstan tiger comeback, and Vietnam’s ancient blackened teeth
This week’s science highlights include Curiosity’s discovery of spiderweb-like structures on Mars containing tiny egg‑like features, Kazakhstan’s plan to reintroduce tigers by year’s end with a major habitat restoration around Lake Balkhash, and archaeologists’ finding of 2,000‑year‑old skeletons in northern Vietnam showing permanently blackened teeth, a practice tied to ancient beauty trends.












