On April 27, 1961, NASA launched Explorer 11, a satellite that contained the first gamma ray telescope to go to space. This marked the birth of space-based gamma ray astronomy. Gamma rays are a form of electromagnetic radiation and have...

Radio Astronomers discovered hundreds of Quasars hiding in our galaxy.

What caused Voyager I to send this weird message?

Highly charged particles, originating from outer space.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

Although radioactive materials are associated with power stations and bombs, we live with radioactive substances all around us. What are they, and do they affect us?
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Physics - Energy And Radioactivity - L
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We know that Mars once had a landscape with oceans and rivers, but what happened to it? Physics - Universe - Learning Points. Although Mars is a freezing dry world today, it is thought the planet was once like Earth. If liquid water once...

Deep underground in a disused mine in Yorkshire, scientists are searching for particles that can't be seen and have never been detected, but might bind our Universe together. Physics - Universe - Learning Points. Dark matter is believed...

High energy electromagnetic radiation, with extremely short wavelengths, often smaller than an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

This video explores the Ulysses spacecraft's mission to study the Sun's polar regions, providing valuable insights into the nature of our nearest star. By observing from above the Earth's atmosphere, Ulysses has revealed a clearer...

In this video, we explore the fascinating world of solar observations and the mission of the Ulysses spacecraft. We learn about the immense complexity of the Sun and how it affects our planet. The video highlights the importance of...

Interaction between cosmic rays and early life-forms may be responsible for the fundamental property of chirality, or “handedness,” in biological molecules.

An announcement of recent multi-messenger astrophysics findings led by the National Science Foundation’s IceCube Neutrino Observatory at the South Pole. Hosted by NSF Director France Córdova, the briefing features leading...

What is the difference between Alkali metals and Alkaline earth metals? What do the Alkaline earth metals include? What is known about Beryllium? Where is Beryllium found? What are examples of binary compounds of Beryllium? How does...

The fastest particles ever detected in the universe are still a mystery to science. Cosmic rays are particles from space. The most energetic and fastest particles we’ve ever detected come from a mystery place. In this video inspired by...

China is building a powerful laser radar facility to help researchers study atmospheric particles that protect against cosmic rays and solar winds.

The History of Physics (Part 2)

This video is a lecture that explains the concept of background radiation, which is a type of ionizing radiation that humans are exposed to every day but at low levels. The video discusses the four main types of ionizing radiation, which...

On Sept. 22, 2017, the National Science Foundation's IceCube Neutrino Observatory alerted the international astronomy community that a high-energy neutrino had passed through the Earth. That notification set in motion follow-on...

Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsar known.



The pulsar...

The insides of the mysterious mausoleum behind the world famous Terracotta Army could be illuminated by cosmic rays.

On June 11, NASA's Fermi Gamma-ray Space Telescope celebrates a decade of using gamma rays, the highest-energy form of light in the cosmos, to study black holes, neutron stars, and other extreme cosmic objects and...

Dr. Brandon Reddell discusses astrophysics, cosmology, and the science behind the Alpha Magnetic Spectrometer (AMS), an experiment looking for evidence of antimatter and dark matter in the cosmos. This is part one of a three-part series...

Dr. Stan Love, NASA astronaut and all-around smart guy, flew to the International Space Station in 2008 and has worked on a number of flight analog programs to understand how to conduct deep-space missions. Love explores the challenges...

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...