Light travels through space as fast as anything in the universe possibly can, but before scientists could figure out light’s speed, they had to figure out whether that speed was even finite.

Hank regales us with the history of the telescope, and then introduces us to some folks from the team who are working on the newest telescope in the chronology - the James Webb Space Telescope, an infrared telescope due to launch in 2018.

Humans have long known that glass bends light. However, it took us awhile to figure out that stacking lenses in a tube would open up a whole new world to science, finally allowing us a peek at the microscopic.

How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the...

A barometer is an instrument that measures air pressure, allowing weather forecasters and scientists to better predict extreme weather events. Despite its incredible usefulness, inventing the barometer was no walk in the park. Asaf...

Humans have long known that glass bends light. However, it took us awhile to figure out that stacking lenses in a tube would open up a whole new world to science, finally allowing us a peek at the microscopic.

From launching probes to ferrying experiment racks to the ISS, the Space Shuttle Atlantis has left quite the legacy on space exploration and scientific research.

Historically speaking, there is no one scientific method. There's more than one way to make knowledge. In this episode we're going to look at a few of those ways and how they became more of the "norm."

Mr. Andersen explains the importance of physics as a science. History and virtual examples are used to give the discipline context.

New ReviewEn este video te explicamos qué es una parábola, qué es el movimiento parabólico, y te damos características del movimiento parabólico y ejemplos de movimiento parabólico.

Einstein's Special Relativity Explained Simply - no math



This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even...

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Neil deGrasse Tyson, a renowned astrophysicist, discovered his passion for outer space at a young age and has since made significant...

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Vera Rubin, a pioneering astronomer, defied societal norms and gender barriers to revolutionize our understanding of the universe. Her...

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Vera Rubin was a pioneering astronomer who defied gender discrimination to make groundbreaking discoveries in the field of astrophysics. Her...

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Vera Rubin, a pioneering astronomer, defied societal norms and gender barriers to make groundbreaking discoveries in the field of astronomy....

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Vera Rubin, a pioneering astronomer, defied gender barriers to make groundbreaking discoveries in the field of astronomy. Through her...

Science Kids Famous Astronomers and Astrophysicists - From Galileo to Neil deGrasse Tyson

Vera Rubin, a pioneering astronomer, defied gender barriers to make groundbreaking discoveries in the field of astronomy. Her research on the...

On November 5, 2002, NASA's old Galileo spacecraft was almost out of fuel. But the Jupiter mission still had some science to do.



‘On This Day in Space’ Video Series on

Space.com

Galileo flew by a small moon called...

Unpack how objects accelerate under Earth’s gravity with g ≈ 9.8 m/s². This lesson explores motion near Earth’s surface, signs of g, and common misconceptions—plus why astronauts feel weightless in orbit!

Meet Galileo, the brilliant scientist who helped unlock the secrets of the stars and planets. Galileo built better telescopes and was one of the first people to see the moons of Jupiter and mountains on the Moon! He challenged old ideas...

Since the invention of the first light microscope, microscopy has evolved so much. We are now able to see things at an atomic level. In this video, we will learn who invented the light microscope and the many other breakthroughs that...

Galileo is a satellite navigation program developed by the European Space Agency and the European Union. It aims to provide a global navigation system that is independent of other existing systems, such as GPS and GLONASS. With its...

In 2005, the European Space Agency achieved significant milestones in space exploration and technology. From landing on Titan and sampling its atmosphere to launching the heaviest commercial launcher, the Arian 510 ton, Europe made great...

Almost everything you could want to know about Callisto.