Currently Browsing: Solar Physics

Mystery Mars Cloud: An Auroral Umbrella?

Mystery Mars Cloud: An Auroral Umbrella?
The strange cloud-like protursion above Mars' limb (around the 1 o'clock point). Credit: Wayne Jaeschke. Last week, amateur astronomer Wayne Jaeschke noticed something peculiar in his observations of Mars — there appeared to be a cloud-like structure hanging above the limb of the planet....

What Do You See When SETI’s Allen Telescope Array Is Aimed At The Sun?

What Do You See When SETI’s Allen Telescope Array Is Aimed At The Sun?
A comparison between an observation of the sun using the ATA's 2.75 GHz band (left) and SOHO's 195A filter. Both are near-simultaneous observations on Oct. 1, 2009 (Saint-Hilaire et al., 2011). And no, “aliens” isn’t the answer. The Allen Telescope Array (ATA), located near...

Can Spicules Explain the Mysteries of Coronal Heating?

Can Spicules Explain the Mysteries of Coronal Heating?
Solar spicules as imaged by NASA's Solar Dynamics Observatory (NASA) There’s one recurring question I’ve been asking for nearly a decade: Why is the Sun’s corona (its atmosphere) so hot? When asking this out loud I inevitably get the sarcastic “um, because the Sun is…...

Compex Magnetic Eruption Witnessed by Solar Observatories

Compex Magnetic Eruption Witnessed by Solar Observatories
Solar Dynamics Observatory view of the solar disk shortly after eruption (NASA). This morning, at 08:55 UT, NASA’s Solar Dynamics Observatory (SDO) detected a C3-class flare erupt inside a sunspot cluster. 100,000 kilometers away, deep within the solar atmosphere (the corona), an extended magnetic...

The UK’s Brain Drain (been there, done that)

Back in 2006, I remember sitting in my local UK Job Centre finding out how I could claim for unemployment benefits. I can see it now, the moment I explained to my liaison officer that I had been looking for work but received little interest. She looked at me and said, candidly, “Have you thought...

Deconstructing Doomsday

Deconstructing Doomsday
Alex Young in front of the cameras in the post-Apocalyptic setting of a Brooklyn building site. The funny thing about being involved in a doomsday documentary is trying to find a suitable balance between entertainment and science. This is the conclusion I reached after the interview I did for KPI productions...

Would You Like a Slice of Moon with that Solar Observation?

Would You Like a Slice of Moon with that Solar Observation?
The Hinode view of the eclipse (JPL/NASA). On July 22nd, Asia witnessed the longest solar eclipse of the century. I saw the pictures, it looked like fun. I’ve only seen a partial solar eclipse in the past, so when I heard about last week’s eclipse lasting nearly 7 minutes, I was more than...

Solar Cycle Prediction: “None of Our Models Were Totally Correct”

Solar Cycle Prediction: “None of Our Models Were Totally Correct”
Predicting space weather is not for the faint-hearted. Although the Sun appears to have a predictable and regular cycle of activity, the details are a lot more complex. So complex in fact, that the world’s greatest research institutions have to use the most powerful supercomputers on the planet...

A Wide Angle View of Our Nearest Star

A Wide Angle View of Our Nearest Star
In case you were wondering why Astroengine has been a little quiet of late, this is why. I’ve been working with my Discovery Space colleagues to produce a “Wide Angle” all about the current solar minimum, space weather and the influence of the Sun on our planet. It’s been fun...

The Sun Has An Anti-Climax

The Sun Has An Anti-Climax
The solar disk on May 11th: Is it? Are they? Not quite (SOHO) Some recent solar articles are freaking out, proclaiming that the Sun is waiting to unleash it’s fury on the Earth (re: Warning: Sunspot cycle beginning to rise) or that it’s lowering its energy output, possibly kickstarting Maunder...
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