By: Robin Lamb
Fifty years ago this month, a former textile factory worker named Valentina Tereshkova became the first woman to fly in space. 26-year-old Valentina was selected from more than 400 applicants because of her skill and experience as a parachutist, and because her father had been...
By: D. Vogt
Today, Italian scientist Galileo Galilei is mainly remembered for his perfection of the telescope and discovery of the four largest moons of Jupiter. However, in his astronomical observations, Galileo also made an important contribution to the development of deductive reasoning during the 17th century. Debates...
By: Dr. Bryan Katz
Most people have heard of the Hubble Space Telescope (HST), but relatively few people are familiar with the astronomer after whom it was named. Edwin Hubble (1889-1954) was a key figure in 20th-century astronomy, so much so that not only was a space telescope named...
By: D. Vogt
In early 2013, scientists working in a research centre installed in an old mine in Minnesota announced important progress in the ongoing search for one of the most elusive substances in the universe - dark matter. The scientists in question are with the Cryogenic Dark...
By: D. Vogt
Gravitational lensing is the process by which light travelling from a distant source seems to "bend" or curve around extremely dense objects that lie between the light source and the observer. It is an extremely important aspect of modern astronomy because the gravity of a...
The search for galactic dark matter in a Minnesota mine
By: Michael Prather - 660563
It’s no secret that the universe is expanding. Astronomers wonder if, at some distant point in the future, the universe will cease to expand and begin contracting. The problem is that there isn’t enough matter in the universe to prevent it from expanding...
By: Imonikhe Ahimie
Light pollution is said to occur when artificial sources of light interfere with the natural night environment as a result of the glare that such lights create. This phenomenon is essentially a function of the increased, and increasing, level of urbanization worldwide. Thus, light pollution...
By: D. Vogt
A supernova, or the explosion at the end of a giant star's life, is one of the most spectacular and destructive phenomena in the natural world. Although the risk is small, a nearby supernova could be devastating to life on Earth because of the intense...
How Sir George Cayley laid the foundation of aerodynamics
By: Robert Waldvogel
Imitation, it has often been said, is the sincerest form of flattery. But, in the case of aviation, it was also a necessity, because, before manned flight could be achieved, dreamers and experimenters alike relied upon the only flying creatures then in existence—the birds&mdash...
By: Imonikhe Ahimie
On September 23, 1846 the German astronomer, Johann Galle (1812 - 1910), discovered the planet that is now designated Neptune. Galle’s discovery of the planet had come about a result of the work done by the French mathematician, Urbain Leverrier (1811 - 1877), who...

 

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