NASA
NASA Explores Earth's Magnetic 'Dent'
Earth’s magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an unusually weak spot in the field – called the South...
NASA
NASA | ARTEMIS Orbits Magnetic Moon
Launched in 2007, NASA's five THEMIS spacecraft have now successfully completed their 2 year mission to determine the cause of geomagnetic substorms. Because they are continuing to work perfectly, NASA is re-directing the outermost two...
NASA
NASA | Voyager Finds Magnetic Bubbles at Solar System's Edge
The sun's magnetic field spins opposite directions on the north and south poles. These oppositely pointing magnetic fields are separated by a layer of current called the heliospheric current sheet. Due to the tilt of the magnetic axis in...
Curated Video
I WONDER - How Does A Compass Work?
This video is answering the question of how does a compass work.
Curated Video
Magnetic Fields Around Current Carrying Wires
This video explains the concept of magnetic fields that form around current carrying wires. It defines magnetic fields and how they are represented by magnetic field lines, which indicate the direction and strength of the magnetic field....
NASA
NASA | Fluxgate Magnetometry
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.
NASA
NASA | Simulations Uncover 'Flashy' Secrets of Merging Black Holes
According to Einstein, whenever massive objects interact, they produce gravitational waves -- distortions in the very fabric of space and time -- that ripple outward across the universe at the speed of light. While astronomers have found...
Brian McLogan
Exam Review Understanding the cosecant graph to determine the range
👉 Learn the basics of graphing the secant and the cosecant graphs. Recall that the secant is the reciprocal of the cosine while the cosecant is the reciprocal of the sine. Also recall that the cosine graph is a sinusoidal graph with...
NASA
NASA | Solar Hurricane Tears Off Tail of Comet Encke
NASA's STEREO satellite captured the first images ever of a collision between a solar "hurricane", called a coronal mass ejection (CME), and a comet. The collision caused the complete detachment of the comet's plasma tail. Scientists...
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 | 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...
NASA
NASA | Goddard Summer Interns: Alejandro Arambula
Alejandro Arambula is an aerospace engineering student at M.I.T. and a summer intern in the Propulsion Lab. This summer he is working with his mentor Khary Parker in building a test assembly for a specific zone of the propulsion system...
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
NASA | MMS Mission Overview
Senior Project Scientist Tom Moore outlines the three instrument suites onboard the four MMS spacecraft. On March 12, 2015, NASA plans to launch the Magnetospheric Multiscale, or MMS, mission. MMS consists of four identical spacecraft...
Curated Video
I WONDER - Why Do Opposite Poles Attract?
This video is answering the question of why do opposite poles attract.
Next Animation Studio
Short circuits in magnetosphere cause radiation spots on Earth
Scientists are starting to understand how solar storms use currents in Earth’s magnetic shield to land some punches.
Curated Video
CompTIA A+ Certification 220-1001: The Total Course - Magnetic Disk Drives
Hard Disk Drives (HDDs), which store data on rotating magnetic disks, have been the go-to mass storage media for decades. A good tech understands how this venerable media works and understands magnetic media’s unique needs. This clip is...
Next Animation Studio
China's "artificial sun" marks development in nuclear fusion
Researchers from China's Hefei Institutes of Physical Science reported its fusion reactor reached 100 million degrees Celsius, over six times the temperature of the sun's core.
Next Animation Studio
Uranus’s ionized gas leak seen for the first time by Voyager 2 decades ago: NASA
Writing in the Geophysical Research Letters, NASA says a review of Voyager 2’s old data from 1986 showed that Uranus vented a giant blob of gas into space.
Next Animation Studio
European glass eels use internal magnetic compass to navigate waters
New research from the University of Miami and Norway’s Institute of Marine Research has found that the European eel at a certain stage of development use an internal magnetic compass to remember the magnetic direction of tidal waves as...
Next Animation Studio
China’s new hovering train is faste
The new train uses electromagnets to hover and move, and it can easily beat a passenger jet on a thousand-kilometer route.
Next Animation Studio
How the Northern Lights are formed
Ongoing geomagnetic storms have led to sightings of the Northern Lights across North America this week, the result of a coronal mass ejection from the Sun that occurred on Sunday, sending a stream of charged particles toward Earth.
Next Animation Studio
China completes the world’s first ‘artificial moon’
China says it has built an artificial moon that can make frogs and pretty much anything else float in the air.