Category Archives: planets

Earthly and Unearthly Beauty

NASA unveiled a couple of rather beautiful things at AGU last week – and despite actually being at the conference, I haven’t really had the time to sit back and appreciate them until now. The first was the ‘Black Marble’, … Continue reading

Categories: climate science, geology, geophysics, photos, planets

One Venus transit – but many kinds of scientific outreach

How more traditional and modern forms of scientific outreach combined effectively in the coverage of Venus’ transit. Continue reading

Categories: planets, public science

Geological maps: still interesting even when there’s only one rock type

The USGS, in collaboration with NASA, have just released a geological map of Jupiter’s ultra-volcanically active moon Io, based on images from the Voyager and Galileo probes. It is a thing of beauty. The sheer variety of different geological units … Continue reading

Categories: geology, planets, volcanoes

Now that’s what I call a geomagnetic storm!

It appears that I was a litte premature with yesterday’s post. Look at what happened to the ambient magnetic field at the two observatories at Boulder and Deadhorse today (the dotted line represents about where the plots I put up … Continue reading

Categories: geohazards, geophysics, palaeomagic, planets

The Earth weathers another geomagnetic storm

A couple of days ago, the sun got a bit excitable: This large flare produced what is known as a Coronal Mass Ejection (CME), a blob of gas and radiation hurled at high velocities from the surface of the sun … Continue reading

Categories: geophysics, palaeomagic, planets