There are plenty of affordable air purifiers on the market. The problem is, they are often of dubious quality or too small to perform well in a typical medium-sized room. The BlueAir Blue Pure ...
Asteroid 2015 XF261 is set to make a close approach to Earth on February 21, 2025, at 16:25 UTC. Discovered in 2015, this near-Earth object has an estimated diameter between 16 and 69 meters. Its ...
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