NASA
NASA | SDO's Helioseismic and Magnetic Imager (HMI)
Dean Pesnell, the SDO Project Scientist, explains how the Helioseismic and Magnetic Imager (HMI) instrument will allow us to see activity inside the sun and even on the other side of the sun. This video is available for download from the...
NASA
NASA | Magnetometry 101
NASA satellites use very sensitive devices called magnetometers to measure the magnetic fields of planets. Like very sensitive compasses, these devices can measure both direction and strength of planetary magnetic fields. Learn more...
NASA
NASA | Comparing CMEs
This video features two model runs. One looks at a moderate coronal mass ejection (CME) from 2006. The second run examines the consequences of a large coronal mass ejection, such as The Carrington-Class CME of 1859. These model runs...
Astrum
How bad is the radiation on Mars?
How do scientists plan to get astronauts to Mars when space radiation is so strong? What can be done about it?
NASA
NASA | Scientists Answer Top Space Weather Questions, Part 1
NASA scientists answer some common questions about the sun, space weather, and how they affect the Earth. This is a two-part series. Part One addresses: 1. What is space weather? 2. What are coronal mass ejections? 3. What are solar...
Curated Video
Types of stepper motor explained
Learn how stepper motor works and the different types in this video on stepper motor basics, covering permanent magnet stepper motor, variable reluctance stepper motor, hybrid stepper motor, the rotational magnetic field as well as the...
NASA
First Map of Mars Electric Currents
Five years after NASA’s MAVEN spacecraft entered into orbit around Mars, data from the mission has led to the creation of a map of electric current systems in the Martian atmosphere. Unlike Earth, Mars lacks a protective global magnetic...
NASA
Gravity Assist: Gravity Assist Podcast, The Sun with Nicky Fox
We start our “Gravity Assist” virtual tour of the solar system with – where else – the Sun! Jim is joined by Project Scientist Dr. Nicky Fox of the Johns Hopkins University Applied Physics Lab to talk about our fascinating star and...
NASA
NASA's Parker Solar Probe Touches The Sun For The First Time
For the first time in history, a spacecraft has touched the Sun. NASA’s Parker Solar Probe has now flown through the Sun’s upper atmosphere – the corona – and sampled particles and magnetic fields there. The new milestone marks one major...
NASA
Solar Storms May Have Been Key to Life on Earth (short)
Our sun's adolescence was cooler than today, but stormy—and new evidence shows that these tempests may have been just the key to seeding life as we know it on Earth. Credit: NASA's Goddard Space Flight Center/Joy Ng based on source...
NASA
NASA | Tracking Energy through Space
Simulation courtesy of J. Raeder/UNH. This short video features commentary by David Sibeck, project scientist for the THEMIS mission, discussing a visualization of reconnection fronts. Taking advantage of an unprecedented alignment of...
NASA
NASA | SDO: Exploring the Sun in High Definition
The Solar Dynamics Observatory is designed to help us understand the Sun's influence on Earth and Near-Earth space by studying the solar atmosphere on small scales of space and time and in many wavelengths simultaneously. Dean Pesnell,...
NASA
Welcome to the Ionosphere
Learn about the features of the ionosphere! This little-explored region exists between space and Earth. It is home to the aurora, the international space station, a variety of satellites, and radio communication waves. We know it is...
NASA
NASA | The Heliophysics Program
This short program overview for NASA's heliophysics division explains how NASA studies the sun--and more importantly--how it affects our daily lives. Learn more:Or get tweeted by NASA:
Curated Video
why transformers hum
In this video, we'll learn about the reasons why transformers make a humming noise. We'll explore the physics behind the sound, and how transformers work.
NASA
NASA | MMS Science Overview: The Many Mysteries of MMS
Scientists Michael Hesse and John Dorelli explain the science objectives of the MMS mission. The Magnetospheric Multiscale (MMS) mission is comprised of four identically instrumented spacecraft that will use Earth’s magnetosphere as a...
Flipping Physics
Equations to Memorize for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review of everything you need to memorize for the exam. Chapters: 0:00 Intro 0:53 Electrostatics 6:53 Gauss’s Law and Electric Flux 12:36 RC Circuits 16:03 LR Circuits 20:05 LC Circuits
NASA
NASA Spacecraft Uncover Mystery Behind Auroral Beads
A special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is helping scientists better understand the science of auroras and their powerful drivers out in space. Known as auroral beads, these lights...
NASA
NASA | Scientists Answer Top Space Weather Questions, Part II
NASA scientists answer some common questions about the sun, space weather, and how they affect the Earth. This is a two-part series. Part Two addresses: 1. Do all flares and CMEs affect the Earth? 2. What happens when a flare or CME hits...
NASA
NASA | Top Solar Discoveries: #3
A countdown of the top 5 solar discoveries from the Sun-Earth Connection Education Forum. These include the discoveries of sunspots, the solar cycle, the heliosphere, aurora formation, and space weather. Number 3 in the Top 5 Solar...
NASA
NASA | MMS Engineering Challenges
It's hard enough to build one spacecraft, but the Magnetospheric Multiscale Mission (MMS) is building four. Together, the spacecraft will unlock the mysteries of magnetic reconnection, when magnetic fields explosively connect and...
NASA
NASA | Fiery Looping Rain on the Sun
Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with...
NASA
NASA | Mission Trailer: IRIS Readies For a New Challenge
NASA is getting ready to launch a new mission, a mission to observe a largely unexplored region of the solar atmosphere that powers its dynamic million-degree outer atmosphere and drives the solar wind. In late June 2013, the Interface...
NASA
NASA | Dr. Holly Gilbert MMS Pre-launch Live Shot
NASA Scientist Dr. Holly Gilbert discusses the upcoming launch and overview of the MMS Mission.