Topic: sun

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NASA’s SDO captures the Mercury Transit in time lapse

From 7:12am to 2:42pm ET on May 9, 2016, Mercury passed between Earth and the Sun, a rare occurrence called a transit. NASA’s Solar Dynamics Observatory (SDO) captured incredible footage of the closest planet to the s...

Space Rocks: Comets, asteroids, meteors, & meteorites

This claymation primer on comets, asteroids, meteoroids, meteors, and meteorites helps us learn about Space Rocks in a super adorable way. Made by Beakus for the Royal Observatory Greenwich, the animation is one in a ...

How Do Bees Make Honey?

Drinking from 1,000 flowers might be enough to fill a honey bee's stomach, but that may not be the stomach you're thinking of. Bees have two different stomachs -- one for digestion and one for nectar storage -- and wh...

Understanding the Magnetic Sun – NASA Goddard

This dynamic computer model of our sun reveals the behavior of its invisible magnetic structure. The pink and green indicate open magnetic field lines that reach out into space, while the "closed" white lines loop bac...

The Science of Skin Color – TED Ed

When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it’ll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the...

JK Brickworks’ LEGO Orrery

Orreries, mechanical models of the solar system, are not about proper scale, but they are good for better understanding the basic positions and motions of the planets and moons in our solar system. LEGO artist Jas...

Yosemite’s Horsetail ‘firefall’ at sunset

Filmed on February 15th, 2016, a brilliant sunset illuminates the white mist and spray of Yosemite National Park's Horsetail Fall with bright oranges and reds. Called a 'firefall', the name for this optical illusion "...

Explore The Solar System: 360 Degree Interactive Tour

Tour our solar system in a information-packed, beautifully-animated way, with this 360 Degree Interactive Tour from Crash Course, Thought Café, and Crash Course Astronomy host Phil Plait. Grab your Cardboard VR kit, o...

Can you push a spacecraft with light? – Physics Girl

In this episode from Physics Girl, Dianna Cowern explains how space ships can use sunlight to travel the stars in the same way that boats use wind to move across the seas. While solar sail spacecraft design is a more ...

Evidence of a Ninth Planet

Thanks to mathematical modeling and computer simulations by CalTech researchers Konstantin Batygin and Mike Brown, we now have strong evidence that there's a large planet -- about 10x Earth's size -- orbiting in an ex...

Solar Wind Strips Martian Atmosphere – NASA Goddard

In 2014, NASA's MAVEN (Mars Atmosphere and Volatile Evolution mission) spacecraft measured the speed and direction of ions escaping from Mars. The data collected as it orbited the Red Planet is visualized in this NASA...

Lunar Eclipses Explained + Does The Moon Really Orbit The Earth?

"As bright as the moon looks in the night sky, what we're really seeing is sunlight, and the percent of its face that's illuminated depends on where it is in relation to the Earth. At the point in its orbit when the m...

What is a constellation? – Crash Course Kids

A constellation is a cluster of stars that create an imaginary shape... a celestial connect-the-dots. In a sky full of millions of stars, these connections between the brightest objects helps astronomers, storytellers...

Building the solar system to scale in the Nevada desert

"Every single picture of the solar system that we ever encounter is not to scale. If you put the orbits to scale on a piece of paper, the planets become microscopic and you won't be able to see them. There is literall...

Supermoon ‘Blood Moon’ Lunar Eclipse – NASA

On September 27th, 2015, a supermoon lunar eclipse -- that's a supermoon and a lunar eclipse or 'blood moon' happening at the same time -- will be visible around much of the planet in a rare celestial event. How rare?...

Stanford Solar Car Project: Racing on Sunshine, a documentary

In 2013, the Stanford Solar Car Project student-run team raced Luminos across the Australian outback, 1,864 miles (3,000 km) from Darwin to Adelaide, in the Bridgestone World Solar Challenge. The trailer above gives j...

Sunlight is way older than you think – TED Ed

The random walk problem -- the "mathematical formalization of a path that consists of a succession of random steps" -- can be applied to sunlight... not the sunlight that travels from the sun to Earth, which takes onl...

Space X’s Falcon 9 falls back to Earth to The Blue Danube

To the tune of Johann Strauss II's Blue Danube waltz, Space X's Falcon 9 falls majestically back to Earth in real time. Falcon 9 is a two-stage rocket that transports satellites into orbit, and powers the Dragon space...

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