Noble gases
Helium shortage deflates American celebrations
Helium balloons are part of nearly every American celebration, but a global shortage of the lighter-than-air gas has disrupted many traditions.
One college football team has suspended its traditional release of red balloons, and party planners will have to make do with less, if they get any.
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Scientists have Discovered the Earliest Molecule in the Universe
German scientists have discovered in space the earliest molecule formed after the Big Bang, DPA and AFP reported.
The appearance of the henel hydride hen H + molecule marks the "beginning of chemistry".
South Korea Confirms Traces of Radioactive Gas From North Korea's Nuclear Test
South Korea said on Wednesday traces of radioactive xenon gas were confirmed to be from a North Korean nuclear test earlier this month, but it was unable to conclude whether the test had been for a hydrogen bomb as Pyongyang claimed.