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How to spot November's planetary parade in the pre-dawn sky

المصدر: feeds.bbci.co.uk · نُشر

How to spot November's planetary parade in the pre-dawn sky
المصدر: feeds.bbci.co.uk

The planets of Mercury, Venus, Mars and Jupiter will align in pre-dawn sky throughout November.

The planets of Mercury, Venus, Mars and Jupiter will align in pre-dawn sky throughout November.

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Molecular sensor makes invisible traces of mercury easier to see
العلوم والبيئة

Molecular sensor makes invisible traces of mercury easier to see

Mercury contamination presents an obvious challenge: it is invisible. A glass of water or a piece of fruit can seem perfectly normal to the naked eye, even when trace amounts of toxic mercury are present. Detecting such minute levels usually requires specialized laboratory tools

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