How Earth and the other planets of the solar system formed and evolved over the eons is a hot question for planetary scientists like me. One of the best ways to find out is by looking at rocks in space or meteorites on Earth. Getting the rocks is the hard part. Sending spacecraft to asteroids ...
Cleanliness reflects the city’s dedication to sustainability, public health, and the quality of life of its citizens. While many cities continue to struggle to keep their areas clean and healthy, these cities show that it is possible to ensure cleanliness in the continuously developing world. The top 10 cleanest cities 1. Hamburg, Germany Hundreds of ...
Marine conservation is helped by the coral adoption scheme linked to bracelet sales. Buying a band directly helps protect and restore reefs around the world. Adopting coral means support for these vital water ecosystems. The program sponsored by 4ocean shows care for the earth by ensuring that these reefs will be around for future generations. ...
You may be used to hearing that it takes the Earth 365 days to make a full lap, but that journey actually lasts about 365 and a quarter days. Leap years help keep the 12-month calendar matched with Earth’s movement around the Sun. After four years, those leftover hours add up to a whole day. ...
During ice ages, dry, frozen terrain extended over much of northern Europe, Asia, and North America. Many plants and animals retreated from these desolate, harsh landscapes and sought refuge in pockets of more hospitable territory. But what was happening in the rest of the world? For a long time, scientists have thought that dry conditions ...
Few plants conjure up the Australian bush better than banksias, whose beautiful flowers are irresistible to honeyeater birds, small marsupials, and nature lovers. But our research, published in Perspectives in Plant Ecology, Evolution and Systematics, shows that the ancestors of banksias actually migrated here from North Africa. We already knew from early fossil pollen studies ...
Once every year, a select group of nuclear, climate, and technology experts assemble to determine where to place the hands of the Doomsday Clock. Presented by the Bulletin of the Atomic Scientists, the Doomsday Clock is a visual metaphor for humanity’s proximity to catastrophe. It measures our collective peril in minutes and seconds to midnight, ...
Colorful flowers and the insects and birds that fly among their dazzling displays are a joy of nature. But how did early relationships between flower color and animal pollinators emerge? In a study published in Proceedings of the Royal Society, we have unraveled this mystery by analyzing the visual environments in which the ancestors of ...
A man was airlifted to hospital last weekend after falling ten meters from a waterfall in Queensland’s Tamborine National Park, which was closed due to storms. Last month, a major safety operation was launched to rescue nine bushwalkers in Wollemi National Park near Sydney after one walker fell from a cliff and suffered a head ...
For much of the 65,000 years of Australia’s human history, the now-submerged northwest continental shelf connected the Kimberley and western Arnhem Land. This vast, habitable realm covered nearly 390,000 square kilometers, an area one-and-a-half times larger than New Zealand is today. It was likely a single cultural zone, with similarities in ground stone-axe technology, styles ...
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