The reason bigger objects in space are round and smaller ones aren’t boils down to gravity. And it’s the same reason mountains on Earth can only grow to a certain height
In the blue corner is the extremely venomous Black Mamba – top snake of Africa – and in the red corner is the muscular Inland Taipan – Australia’s alpha snake.
Cyclones Trevor and Veronica hit north Australia in 2019.
NASA Earth Observatory handout/EPA/AAP
In 1887 Queensland’s chief weatherman Clement Wragge began naming tropical cyclones, using names from the Greek alphabet, fabulous beasts and politicians who annoyed him.
Gardeners use water crystals to drought-proof their plants.
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Finding a mate is of course essential to produce the next generation. And feathers and fur play key roles in making sure that happens.
Pluto in enhanced color, to illustrate differences in the composition and texture of its surface.
NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute
No country can lay claim to sovereignty over a planet, moon or rocky body. But in the absence of clear laws regulating mining in space, it’s a case of first in, best dressed for resource extraction.
Earth experiences constant volcanic activity - here’s Indonesia’s Mount Anak Krakatau (Child of Krakatoa) photographed in July 2018.
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Compared to Earth, more “oomph” is required to bring magma to the surface of Mars, and this is probably why we haven’t seen any recent eruptions on the red planet.
Jumping in elevators is fun. If you like jumping.
Mavis Wong/The Conversation
If you fall one storey, dust yourself off – you’ll be fine. If you fall seven storeys: sorry, but you’ve probably got about 2 seconds to prepare to meet your maker.
The skin under our eyes is thinner than elsewhere on our face, meaning our blood vessels are more visible.
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It’s all about the chemistry. Adding lemon can enhance the flavour and enjoyment of tea, and change its colour, but its best not to expect any extra boosts to your health.
Face masks are a common sight in Asia. Why?
David Chang/AAP