homehome Home chatchat Notifications


Solar twisters sweep the sun's surface [INCREDIBLE VIDEO]

Exactly two years ago, NASA launched a $850 million spacecraft, called the Solar Dynamics Observatory, on a five-year long mission to record high-definition videos of the sun, which should help astronomers better understand its weather cycle and how and how it might affect life on Earth. To celebrate SDO’s 2nd anniversary, NASA has released a […]

Tibi Puiu
February 20, 2012 @ 6:08 pm

share Share

Exactly two years ago, NASA launched a $850 million spacecraft, called the Solar Dynamics Observatory, on a five-year long mission to record high-definition videos of the sun, which should help astronomers better understand its weather cycle and how and how it might affect life on Earth. To celebrate SDO’s 2nd anniversary, NASA has released a stunning video featuring tornado-like formations swirling across the sun’s surface. Nothing short of amazing!

Sun Tornado These aren’t quite tornadoes, though, but rather super-hot plasma eruptions. The video, shot in a 30-hour period between Feb. 7 and 8, shows a couple of such plasma fountains creeping upon the sun’s surface. Dark spots shifting back and forth represent cooler plasma, while the eerie yellow hue is simply due to the fact that the recording was made in the extreme ultraviolet range of the light spectrum.

Sun tornadoes like the ones featured in the NASA video have been known to astronomers for decades now, and although they might look fairly similar to their counterparts on Earth, they’re very much different. Tornadoes on Earth need wind to be generated; wind which doesn’t exist on the sun. Instead of temperature of pressure fluctuations, powerful competing magnetic forces, which pull the charged magnetic particles on the sun back and forth, cause the erupting plasma to eject in a swirling manner.

 

share Share

How Hot is the Moon? A New NASA Mission is About to Find Out

Understanding how heat moves through the lunar regolith can help scientists understand how the Moon's interior formed.

Should we treat Mars as a space archaeology museum? This researcher believes so

Mars isn’t just a cold, barren rock. Anthropologists argue that the tracks of rovers and broken probes are archaeological treasures.

Proba-3: The Budget Mission That Creates Solar Eclipses on Demand

Now scientists won't have to travel from one place to another to observe solar eclipses. They can create their own eclipses lasting for hours.

This Supermassive Black Hole Shot Out a Jet of Energy Unlike Anything We've Seen Before

A gamma-ray flare from a black hole 6.5 billion times the Sun’s mass leaves scientists stunned.

Astronauts will be making sake on the ISS — and a cosmic bottle will cost $650,000

Astronauts aboard the ISS are brewing more than just discoveries — they’re testing how sake ferments in space.

Superflares on Sun-Like Stars Are Much More Common Than We Thought

Sun-like stars release massive quantities of radiation into space more often than previously believed.

Astronomers Just Found Stars That Mimic Pulsars -- And This May Explain Mysterious Radio Pulses in Space

A white dwarf/M dwarf binary could be the secret.

These Satellites Are About to Create Artificial Solar Eclipses — And Unlock the Sun's Secrets

Two spacecraft will create artificial eclipses to study the Sun’s corona.

Mars Dust Storms Can Engulf Entire Planet, Shutting Down Rovers and Endangering Astronauts — Now We Know Why

Warm days may ignite the Red Planet’s huge dust storms.

The Smallest Asteroids Ever Detected Could Be a Game-Changer for Planetary Defense

A new technique allowed scientists to spot the smallest asteroids ever detected in the main belt.