The U.S. Navy is drafting new guidelines for pilots and other employees to report encounters with “unidentified aircraft.”

The new effort comes in response to more sightings of unknown, advanced aircraft flying into or near Navy strike groups or other sensitive military facilities and formations, according to the Navy.

A 1,110-foot-wide asteroid named for the Egyptian god of chaos (and possibly a Stargate SG-1 character) will fly past Earth in 2029 within the distance of some orbiting spacecraft, according to reports.

Image copyright: JEAN-JACQUES HUBLIN, MPI-EVA, LEIPZIG

Scientists have found evidence that an ancient species of human called Denisovans lived at high altitudes in Tibet.

The ability to survive in such extreme environments had previously been associated only with our species – Homo sapiens.

One of the main contentions with the accepted theory of the Big Bang is that you cannot get something from nothing. Below is a sample chapter from a new book which shows just how you do get something from nothing, even though it is prohibited by natural law and common sense.

In London Britain’s parliament declared a symbolic climate change “emergency” on Wednesday. Are these people truly insane or corrupt?

SUN PRAIRIE, Wis. – As Wisconsin enters peak tick season, a Sun Prairie woman is sharing her story battling Lyme disease, saying there’s more to it than you might think.

“First of all, I am a plant freak. I love them,” Alicia Cashman said. “I used to be outdoors all the time.”

Question:  Was the SURFRAD project originally designed to measure the Diffuse Solar radiation on our planet’s surface? I conclude ‘probably not.’ I explain why below.

New book on cosmology declares: “The universe is infinite; the motions of matter are predominantly cyclical.”

At Principia Scientific International we pride ourselves on providing a platform for our readers to debate and discuss some of the more contentious ideas in science.

In that regard we have pleasure in highlighting Glenn Borchardt’s book, ‘Infinite Universe Theory’ recently made available to purchase as an ebook.

For the past 30 years, there has been an orchestrated alarm over how much a trace of a trace gas, human-produced carbon dioxide (CO2), impacts earth’s climate.

The idea was presented as the ‘settled science’ and that there exists a ‘greenhouse effect’ in Earth’s atmosphere and that CO2 ‘traps heat’ or ‘delays cooling’.

Herbert Eugene Ives was born in 1882 and died in 1953. (Einstein’s dates are: 1879-1955.) A Philadelphian by birth, Ives did his most important work in New York as Director of Electro-Optics at Bell Labs; overseeing a team of 200 engineers and technicians.

From the very day that Al Gore signed his name to the well-known book, An Inconvenient Truth, the general population was told that carbon emissions were going to destroy our planet.

Gore, more or less, coined the term “carbon footprint” (while always hiding the enormity of his own footprint). Gore and his cohorts were never actually talking about carbon.

The BBC has just launched its Undiscovered Worlds series, with the intrepid Steve Backshall kayaking up the Scoresby Sund, the world’s largest fjord in Greenland.

Abstract: The sun controls climate change. Not industry. Not you. Not me. It is the sun.

Physics is the science of the study of the world around us and how it works. It is supposed to be about observation and experimentation to develop theory on why things happen and the rules governing these occurrences.