What insights can children's drawings give us, and deadly tales from the chemical element lead.

Despite giving its name to a whole group on the periodic table, chemists can't agree if lanthanum even belongs in that group, says Prof Allan Blackman from AUT in ep 42 of Elemental.

In real life krypton is a noble gas which is commonly used in neon signs and laser light shows, says Allan Blackman from AUT in ep 41 of Elemental.

Professor Rangi Mātāmua talks about the 120-year-old book which has preserved his ancestors' knowledge of Māori astronomy.

To mark Matariki, the Māori New Year, we join Dr Rangi Matamua from the University of Waikato to hear about Māori astronomy.

Iron is formed in stars, makes up most of the Earth's core & as a result enables life as we know it to exist, says Prof Allan Blackman from AUT, in ep 40 of Elemental.

The kākāpō health crisis is stable, with no further cases of aspergillosis diagnosed, and seven hand-reared chicks have been successfully released in the wild, in ep 21 of the Kākāpō Files.

Iridium is the second-densest element on the periodic table and the most erosion-resistant metal. A layer of iridium in rocks marks the demise of the dinosaurs, according to Allan Blackman from AUT, in ep 39 of Elemental.

NIWA scientists are putting freshwater fish such as inanga through swimming trials, to find out how they cope with water moving at different speeds.

NIWA is putting freshwater fish through their paces in a swimming test, and the story of indium, the chemical element that is the Queen of the touchscreen.