NASA
NASA | What is Fermi?
The Fermi Gamma-ray Space Telescope is a NASA observatory designed to reveal the high-energy universe in never-before-seen detail. With Fermi, astronomers have a unique tool to explore high-energy processes associated with solar flares,...
NASA
NASA | Our Violent Universe
Our universe is more than a serene landscape of stars--it is teeming with activity from some extremely violent events. In a presentation at the IMAX theatre at the Smithsonian National Air and Space Museum in Washington, D.C. on...
NASA
NASA | Fermi Finds a Youthful Pulsar Among Ancient Stars
In three years, NASA's Fermi has detected more than 100 gamma-ray pulsars, but something new has appeared. Among a type of pulsar with ages typically numbering a billion years or more, Fermi has found one that appears to have been born...
NASA
NASA | Fermi at Five Years
This compilation summarizes the wide range of science from the first five years of NASA's Fermi Gamma-ray Space Telescope. Fermi is a NASA observatory designed to reveal the high-energy universe in never-before-seen detail. Launched in...
NASA
NASA | Terrestrial Gamma-ray Flashes Create Antimatter
NASA's Fermi Gamma-ray Space Telescope has detected beams of antimatter launched by thunderstorms. Acting like enormous particle accelerators, the storms can emit gamma-ray flashes, called TGFs, and high-energy electrons and positrons....
NASA
NASA | A Black Widow Pulsar Consumes its Mate
Black widow spiders and their Australian cousins, known as redbacks, are notorious for an unsettling tendency to kill and devour their male partners. Astronomers have noted similar behavior among two rare breeds of binary system that...
NASA
NASA | Fermi Helps Scientists Study Gamma-ray Thunderstorms
Merging data on high-energy bursts seen on Earth by NASA's Fermi Gamma-ray Space Telescope with data from ground-based radar and lightning detectors, scientists have completed the most detailed analysis to date of the types of...
NASA
NASA Hangout: Hurricane Severe Storm Sentinel Mission - HS3
NASA will fly two unmanned aircraft over Atlantic hurricanes this summer. The Hurricane and Severe Storm Sentinel, or HS3, mission is a five-year project that first took to the field in 2012 from NASA's Wallops Flight Facility, Wallops...
NASA
NASA | Stellar Odd Couple Makes Striking Flares
Every 3.4 years, pulsar B1259--63 dives twice through the gas disk surrounding the massive blue star it orbits. With each pass, it produces gamma rays. During the most recent event, NASA's Fermi observed that the pulsar's gamma-ray flare...
NASA
NASA | GLASTcast 2008 Mission Update
The GLAST mission launched on June 11, 2008 and has been returning remarkable and revolutionary discoveries ever since. Recently renamed to the Fermi Space Telescope, after Nobel Prize winner Enrico Fermi, the mission is expected to...
NASA
NASA | GLASTcast | Episode 1: What is GLAST?
NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany,...
NASA
NASA | Fermi's Close Call with a Soviet Satellite
NASA scientists don't often learn that their spacecraft is at risk of crashing into another satellite. But when Julie McEnery, the project scientist for NASA's Fermi Gamma-ray Space Telescope, checked her email on March 29, 2012, she...
Curated Video
Hazards of Radioactivity: Types of Ionizing Radiation and their Impact on Living Organisms
The video is a lecture on the hazards of radioactivity. It discusses the four main types of ionizing radiation (alpha particles, beta particles, gamma rays, and neutrons), how ionizing radiation can cause tissue damage in living...
FuseSchool
Electromagnetic Waves | Electricity | Physics | FuseSchool
Electromagnetic Waves | Electricity | Physics | FuseSchool You may never have heard of the electromagnetic spectrum, but you would have heard of many parts of it and use them daily. They are all electromagnetic transverse waves that...
Curated Video
Neutron Stars Explained in Simple Words for Laymen
Neutron stars are formed from the core of some starrs. Neutron stars generally have a radius of only around 12 km. With masses exceeding 1.4 times that of the Sun, these are some of the densest objects in the Universe. A tablespoonful of...
Curated Video
Applications of Ionizing Radiation: Uses of Radioactivity for Our Benefit
The video discusses various applications of ionizing radiation in our daily life, including irradiation of food, sterilization of equipment, smoke alarms, thickness gauging, and medical applications like tracers, PET scanners, and cancer...
NASA
NASA | Fermi Proves Supernova Remnants Produce Cosmic Rays
A new study using observations from NASA's Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence that the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a...
FuseSchool
Nuclear Fission
Nuclear Fission In a nuclear reactor the controlled slow release of energy is used to heat up a closed loop of coolant which passes to heat exchangers which then boil water to provide steam to turn electrical generators. The output of...
NASA
NASA | Turning Black Holes into Dark Matter Labs
A new computer simulation tracking dark matter particles in the extreme gravity of a black hole shows that strong, potentially observable gamma-ray light can be produced. Detecting this emission would provide astronomers with a new tool...
Curated Video
Introduction to Electromagnetic Waves and the Electromagnetic Spectrum
The video explains the basics of electromagnetic waves, including their definition as transverse waves that transfer energy from a source to an absorber. It discusses the seven general sections of the electromagnetic spectrum, going from...
NASA
NASA's Fermi Spots 'Fizzled' Burst from Collapsing Star
On Aug. 26, 2020, NASA’s Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that turned out to be one for the record books – the shortest gamma-ray burst (GRB) caused by the death of a massive star ever seen. GRBs...
FuseSchool
Penetrating Properties of Radiation
Penetrating Properties of Radiation
Radioactivity. What is it? Should we be worried?
It was Marie Curie who first used the word radioactive to describe a phenomenon discovered by Becquerel in 1896. It would be Rutherford who would...
msvgo
Radioactivity
This nugget explains the concept of radioactivity, its types and mathematical expressions and examples.
Curated Video
Medical Imaging
Medical Imaging | Waves | Physics | FuseSchool If only we were all given a window so a doctor could look inside us when we were ill.Think of the operations that would save! Luckily there are now many ways we can see what is happening...