I can calculate the motions of the heavenly bodies, but not the madness of people

— Sir Isaac Newton

Feed aggregator

Venomous Snakes Are Spreading because of Climate Change

Scientific American.com - Tue, 04/16/2024 - 6:45am

Deadly bites could surge as venomous snakes migrate into unprepared countries as the climate changes

Categories: Astronomy

Peter Higgs Dies at 94

Universe Today - Tue, 04/16/2024 - 6:28am

Just like Isaac Newton, Galileo and Albert Einstein, I’m not sure exactly when I became aware of Peter Higgs. He has been one of those names that anyone who has even the slightest interest in science, especially physics, has become aware of at some point. Professor Higgs was catapulted to fame by the concept of the Higgs Boson – or God Particle as it became known. Sadly, this shy yet key player in the world of physics passed away earlier this month.

Peter Higgs was born on 29th May 1929 in Newcastle upon Tyne. He suffered with asthma as a child and, coupled with the family moving around due to his father’s work, was schooled at home for much of his earlier years. Whilst living in Bristol, Higgs’ father had to move to Bedford so Peter and is Mum stayed behind. Eventually he enrolled in Cotham Grammar School in Bristol where he excelled at science and won many prizes for his work. Surprisingly this tended to focus around chemistry rather than physics. It was at Cotham that he became fascinated by quantum mechanics.

By the time he was 17, he had moved to City of London School and here he focussed on mathematics, eventually graduating with a first-class honours degree in physics. His masters came two years later in 1952. In 1954, he was awarded a PhD with a thesis titled ‘Some Problems in the Theory of Molecular Vibrations from the Universe.’ Higgs tried to get a job at Kings College where he earned his PhD but was unsuccessful so moved to the University of Edinburgh and set about answering the question – Why do some particles have mass?

He worked upon the idea that, at the time when the Universe began, particles did not have mass. This was later gained due to interactions with something which became known as the Higgs Field. The concept was a field that permeates through space giving mass to sub-atomic particles like quarks and leptons. His work was an evolution of earlier work from Yoichiro Nambu from the University of Chicago.

Two other groups of scientists published work at similar times with a similar concept, but Higgs’ work published in 1964 was prominent and so the (theoretical) particle, that transferred mass, became known as the Higgs Boson. In the years that followed, scientists hunted for the new particle, chiefly using the Large Hadron Collider at CERN but Higgs retired by 2006 with nothing detected.

The Hadron Collider is a particle accelerator that had been built to simulate conditions equivalent to billionths of a second after the Big Bang. By crashing subatomic particles together and observing the interactions, scientists can probe the very nature of matter. It cost $10bn and it was this that scientists hoped would prove, or otherwise Higgs’ theory.

In 2012, Higgs received word from CERN at the collider ‘Peter should come to the CERN event or he will regret it!’ Higgs went along and to his delight and amazement, and at the age of 83 and 48 years after he published his theory, he heard that the Higgs Boson had finally been discovered. Higgs later said “It’s been a long wait but it might have been even longer, I might not have been still around. At the beginning I had no idea whether a discovery would be made in my lifetime.”

The discovery changed the face of physics and it was this that led to being awarded a Nobel Prize. Higgs didn’t own a mobile phone though and he found out about his award when a neighbour stopped him in the street to congratulate him. It is clear though that Higgs was in it for the science and not the fame that came with his groundbreaking discovery. He was a man who was often referred to as shy and retiring and he will be a great loss to the world of Physics. Professor Higgs died on 8th April 2021.

The post Peter Higgs Dies at 94 appeared first on Universe Today.

Categories: Astronomy

Record breaker! Milky Way's most monstrous stellar-mass black hole is sleeping giant lurking close to Earth

Space.com - Tue, 04/16/2024 - 6:00am
Astronomers have discovered the most massive stellar-born black hole ever seen in the Milky Way, and it lies relatively close to Earth.
Categories: Astronomy

A surprisingly enormous black hole has been found in our galaxy

New Scientist Space - Cosmology - Tue, 04/16/2024 - 4:00am
A black hole 33 times the mass of the sun is the largest stellar black hole ever spotted, and its strange companion star could help explain how it got so huge
Categories: Astronomy

A surprisingly enormous black hole has been found in our galaxy

New Scientist Space - Space Headlines - Tue, 04/16/2024 - 4:00am
A black hole 33 times the mass of the sun is the largest stellar black hole ever spotted, and its strange companion star could help explain how it got so huge
Categories: Astronomy

EarthCARE out of the box

ESO Top News - Tue, 04/16/2024 - 3:00am

After being packed up in Germany, a long voyage to the US and then a month in storage, ESA’s EarthCARE satellite has been carefully lifted out of its transport container so that the team at the launch site can start getting it ready for its big day in May.

Categories: Astronomy

Sleeping giant surprises Gaia scientists

ESO Top News - Tue, 04/16/2024 - 3:00am

Wading through the wealth of data from ESA’s Gaia mission, scientists have uncovered a ‘sleeping giant’. A large black hole, with a mass of nearly 33 times the mass of the Sun, was hiding in the constellation Aquila, less than 2000 light-years from Earth. This is the first time a black hole of stellar origin this big has been spotted within the Milky Way. So far, black holes of this type have only been observed in very distant galaxies. The discovery challenges our understanding of how massive stars develop and evolve. 

Categories: Astronomy

<p><a href="https://apod.nasa.gov/apod

APOD - Tue, 04/16/2024 - 12:00am

Captured in this snapshot, the shadow of the Moon came to Lake Magog,


Categories: Astronomy, NASA

Seeing the Solar Eclipse from 223,000 Miles Away

NASA Image of the Day - Mon, 04/15/2024 - 2:50pm
This spectacular image showing the Moon’s shadow on Earth’s surface was acquired during a 20-second period starting at 2:59 p.m. EDT (18:59:19 UTC) on April 8, 2024, by NASA’s Lunar Reconnaissance Orbiter.
Categories: Astronomy, NASA

Planetary defenders assemble!

ESO Top News - Mon, 04/15/2024 - 10:05am
Image: Planetary defenders assemble!
Categories: Astronomy

ESA accelerates the race towards clean energy from space

ESO Top News - Mon, 04/15/2024 - 8:54am

ESA accelerates the race towards clean energy from space

Categories: Astronomy

NASA Announces Summer 2023 Hottest on Record

Earth News - Thu, 09/14/2023 - 4:05pm
The summer of 2023 was Earth’s hottest since global records began in 1880, according to scientists at NASA’s Goddard Institute of Space Studies (GISS) in New York.
Categories: NASA

NASA: El verano de 2023 es el más caluroso en el registro

Earth News - Thu, 09/14/2023 - 12:03pm
El verano boreal de 2023 fue el más caluroso para la Tierra desde que se establecieron registros mundiales de temperaturas en 1880, según un análisis realizado por científicos del Instituto Goddard de Estudios Espaciales (GISS, por sus siglas en inglés) de la NASA en Nueva York.
Categories: NASA