The Northern Hemisphere gets its biggest dose of daylight.
Takmeng Wong and the CERES Science Team at NASA Langley Research Center
The tilt of Earth's axis as it orbits the sun results in the seasonal changes.
A fly’s eye view of a rapidly approaching swatter.
Cameron Webb (NSW Health Pathology)
Why are flies so easily able to evade our attempts to swat them?
Australians need better planning to cope with extreme heat.
Australia's scorching summers aren't just inconvenient: heatwaves are deadly. Yet new research has found many vulnerable people don't have a plan for extreme heat.
Sunscreen protects from skin cancer, burning and from the sun’s ageing effects.
PRONicki Dugan Pogue/Flickr
Whenever summer rolls around, it's easy to forget the basics of sunscreen. How long should I wait after applying it to go in the sun, and how long can I stay in the sun with it on?
Sunrise over Brisbane.
A solar day is a measure of how long it takes the Earth to rotate from one noon to the next, and today's summer solstice also happens to be the longest solar day of the year.
Food glorious food – not for all children.
But holiday clubs can help.
Building the hotbox dream: another housing development in Western Sydney.
Extreme heat divides people from the environment and from each other. So with the rapid densification of our cities, what kind of legacies are we building for future generations?
You're lucky – dogs can only sweat through their paws.
Where is a fainting couch when you need one?
Michael C. Gray/From www.shutterstock.com
Fainting is a common but often misunderstood occurrence, and heat can bring it on. As summer approaches, here are some things to know about fainting, as well as some ways to prevent it.
Simply being exposed to nature can help children better cope with stress.
Exposure to nature plays a positive role in brain development by providing children with opportunities to take risks, discover new things, and be creative.
Little does this woman know what happens to her brain when she licks the ice cream.
It's a long, hot summer's day and you're looking forward to an ice cream. But within seconds of your first bite, you feel a headache coming on: a brain freeze. What's going on?
Insect repellents can keep biting mosquitoes at bay but they’ve got to be used correctly.
Dr Cameron Webb (NSW Health Pathology/University of Sydney))
This is what really works to beat the bite of summer mosquitoes!
Flower flies are native pollinators.
While the Bureau of Meteorology is predicting an increase in the average temperature this summer, entomologists are forecasting an increase in insect activity.
Tropical Cyclone Carlos approaches Western Australia in February 2011.
NASA Goddard Space Flight Center/Flickr
Australia is facing an above-average cyclone season, with at least 11 cyclones likely in the region.
The beach lies at the edges of the country, and can feel like another place entirely. French hand-wringing over Muslim dress for paddling should make us look again at our own attitudes.
Spencer Gulf at sunset in South Australia.
Australian Bureau of Meteorology
The summer of 2015-2016 was the hottest on record for Australia's oceans.
To lawn or not to lawn, that is the question.
As summer rolls on once again you're despairing at a brown lawn. Perhaps you should embrace a shabbier backyard.
What’s hiding in your garden this summer?
Have a look in your garden - you might be surprised at some of the native animals that thrive there when the weather's hot.
Hot image from www.shutterstock.com
Sweating it out through hot summer nights? Here are some tips when you're looking for something to cool you down.
It's summer, which means that the inevitable annual scrum to read the newest and hottest book on the block has begun. How exhausting.