On March 3, 1912, Henrietta Swan Leavitt made a short contribution to the Harvard College Observatory Circular. With it she laid the foundations of modern Astronomy. Locked in solitude due to her deafness, Leavitt was the first person to discover how to measure distance to galaxies, thus expanding our understanding of the Universe in one giant leap.
Elizabeth Holmes was a chemical engineering student who dropped out of Stanford to found Theranos: a silicon-valley start-up company that, at one point, was valued at US$9 billion. Her plan was to be another Steve Jobs. Today, she is facing fraud and other criminal charges.
The hunt for exoplanets was inspired by advances in understanding of the formation of stars: it was becoming clear that the gases that were contracting to form new stars were somehow shedding the bulk of their energy of rotation, while new observations were revealing disks full of gas and dust, spinning around such forming stars, and containing a lot of energy of rotation.
How did life begin? We will never know with certainty what the Earth was like four billion years ago, or the kinds of reactions that led to the emergence of life at that time, but there is another way to pose the question. If we ask “how can life begin?” instead of “how did life begin,” that simple change of verbs offers hope.
Ingesting 250 micrograms of the compound, Albert Hofmann experienced strong sensory and cognitive alterations, which reminded him of mystical episodes of his youth. That was the advent of the modern psychedelic age, which would go on to change society fundamentally.
2019 marks the 150th anniversary of the creation of the periodic table, and it has been declared the International Year of the Periodic by the United Nations Educational, Scientific, and Cultural Organization (UNESCO).
By the mid-1930s, just five fundamental particles were known. This concise collection of building blocks revealed the true nature of matter and light. Three types of particle: electrons, protons, and neutrons, formed the wide array of atoms known to chemistry.
The periodic table turns 150 years old in the year 2019, which has been appropriately designated as the International Year of the Periodic Table by the UNESCO Organization.
Our planet is out of balance as the result of our technologies. The Intergovernmental Panel on Climate Change warns that global temperatures could reach a frightening plus +3° by the end of the century, our ocean ecosystems risk being overwhelmed by non-degrading plastic waste, open rubbish tips scar the landscape and pollute our water supplies […]
From Darwin to Desmond Tutu, and numerous Nobel Prize winners in between, discover which well-known academics have published in our journals over the course of 140 years through our interactive timeline.
Sometimes spouses will look back on the time of their getting to know one another and say, half-jokingly, that on a given occasion one was putting the other to the test.
For too long, presentations of science for the general public, and education in schools, has suggested that science wields a sort of hegemonic power, as if its terms and methods gradually replace and make redundant all other discourse; the only reason it has not yet completed its conquest is that the world is complicated—but it is only a matter of time…
In 1969, half a century ago, astronauts first landed on Earth’s sole moon. The first successful robotic landers touched down on the much more distant Venus and Mars in 1970 and 1976, respectively, and in the same decade spacecraft flybys provided the first, fleeting close-ups of Jupiter and Saturn. It was not until two decades […]
With over 10 million active researchers, more than 2 million scientific articles published each year, and an uncontrolled spread of bibliometric indicators, contemporary science is undergoing a profound change that is modifying consolidated procedures, ethical principles that were deemed inalienable and traditional mechanisms for the validation of scientific outputs that have worked successfully for the last century.
The central regions of galaxies are extremely crowded places, containing up to a few hundreds of millions of stars. They are generally extremely dense environments, where a variety of phenomena occur frequently.
Human communication takes many forms, but picturing humans using chemical mechanisms to send messages leaves us skeptical. However, this concept becomes more plausible when we think of communication mediated via pheromones in animals.