Scientists have been searching for "dark matter" – an unknown and invisible substance thought to make up the vast majority of matter in the universe – for nearly a century. The reason for this persistence is that dark ...
Astronomy
Jan 31, 2019
106
699
What do you think of when you think about ancient Egyptian mummies? Perhaps your mind takes you back to a school trip to the museum, when you came face to face with a mummified person inside a glass case. Or maybe you think ...
Archaeology
Aug 3, 2024
0
37
After thousands of years of trying, mathematicians are still working out the number known as pi or "π". We typically think of pi as approximately 3.14 but the most successful attempt to calculate it more precisely worked ...
Mathematics
Mar 14, 2016
13
301
The Pleistocene epoch, which started 2.6 million years ago and lasted until about 11,700 years ago, was crucially important for our hominin ancestors.
Archaeology
Apr 26, 2021
7
628
Speculating about what aliens look like has kept children, film producers and scientists amused for decades. If they exist, will extra terrestrials turn out to look similar to us, or might they take a form beyond our wildest ...
Astronomy
Aug 19, 2016
161
1818
Numbers do not exist in all cultures. There are numberless hunter-gatherers embedded deep in Amazonia, living along branches of the world's largest river tree. Instead of using words for precise quantities, these people rely ...
Social Sciences
Apr 26, 2017
14
3165
Farmers around the world all need to deal with weeds. The most widely used chemical product they use to kill those unwanted plants is glyphosate, often sold under commercial names like Roundup.
Agriculture
Jul 11, 2024
2
238
Space X and Tesla founder Elon Musk has a vision for colonising Mars, based on a big rocket, nuclear explosions and an infrastructure to transport millions of people there. This was seen as highly ambitious but technically ...
Space Exploration
Aug 2, 2018
62
316
Meteorites hit New Zealand three or four times a year, but the fireball that shot across the sky above Cook Strait last week was unusual.
Astronomy
Jul 11, 2022
0
72
If a tree falls in a forest and no one is there to hear it, does it make a sound? Perhaps not, some say.
Quantum Physics
Aug 24, 2020
20
1850
