NASA reports that astronomers have detected X-rays from Uranus for the first time, using its Chandra X-ray Observatory.

Astronomers have seen light from BEHIND a black hole for the first time. I explained the discovery and results to my editor, Levi. Congrats to D. Wilkins and the astronomy team!

This video explains the process of accommodation, which is the ability of the eye to focus on objects at different distances. The video also highlights two common eye conditions, hyperopia and myopia, and suggests ways to overcome them,...

Most large galaxies contain a giant central black hole. In an active galaxy, matter falling toward the supermassive black hole powers high-energy emissions so intense that two classes of active galaxies, quasars and blazars, rank as...

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.

In this video, we learn about how sunscreen works to protect our skin from the sun's rays. It explains the difference between sunscreens and sunblocks, and how they filter or reflect the light to prevent it from burning the skin....

We made a pinhole camera in the back of a Uhaul! This pinhole camera is the best way to see an eclipse!

Scientists using data from NASA’s Neutron star Interior Composition Explorer (NICER) telescope on the International Space Station have discovered X-ray surges accompanying radio bursts from the pulsar in the...

On April 15, a brief burst of high-energy light swept through the solar system, triggering instruments on many NASA missions. Now, multiple international science teams conclude that the blast came from a...

If you don't know what Choosing Wisely is, start with our HCT episode on it. If you do, then still watch it. It's good.

What we call "light" is actually just a tiny fraction of the broad range of radiation on the electromagnetic radiation spectrum. The entire span stretches from very-low-energy radio waves through microwaves, infrared light,...

NASAs OSIRIS-REx mission launches in September 2016 and plans to return a sample of asteroid Bennu to Earth in 2023. This video profiles a student-built instrument aboard the OSIRIS-REx spacecraft called REXIS - the Regolith X-Ray...

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...

In this segment of On Location, Coyote visits the Arizona Sonora Desert Museum for Stingray feeding time! The middle of the desert is not typically the place one would think to visit for an up close Stingray encounter but that’s all...

Eta Carinae is a binary system containing the most luminous and massive star within 10,000 light-years. A long-term study led by astronomers at NASA's Goddard Space Flight Center in Greenbelt, Maryland, combined data from NASA...

NASA's Swift satellite rode to orbit aboard a Delta II rocket on November 20, 2004, and it's still going strong. Swift's unique instrumentation allows it to quickly locate an interesting high-energy outburst, automatically determine...

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...

Learn all about angles. An angle is a figure formed by two rays sharing a common endpoint. An angle can be classified as acute, right, obtuse, straight or refrex. An acute angle is an angle which measures less than 90 degrees. A right...

Sophia loves going to the park when Sunny is up in the sky. But she hates putting on sunscreen! When Sophia gets sunburnt, she feels so disappointed – she must stay inside to recover, even though it is so sunny and beautiful outside!...

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...

👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles,...