Immediately after the Big Bang, before the first stars in the Universe ever formed, the Universe consisted of hydrogen (element #1), helium (element #2) and pretty much nothing else. Despite ...
Which is your favourite chemical element? To mark the International Year of the Periodic Table, our science journalists will be arguing for their pick from the 118 known elements. In this instalment, ...
Discovered in the 1800s in the solar spectrum, helium has been an element that has eluded humans for centuries. Despite being listed as one of the most abundant elements in the universe, this noble ...
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