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The Authors
For lot's more videos on soil moisture topics, see Drs Selker and Or's text-book support videos https://www.youtube.com/channel/UCoMb5YOZuaGtn8pZyQMSLuQ/playlists
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Category Archives: planets
The changing picture of the Martian core
It’s now been almost a year since NASA’s InSight lander – home of the first seismograph ever deployed on Mars – was declared dead. But the picture of the Red Planet’s interior being deduced from the four years of seismic … Continue reading
A volcano erupted on Venus in the 1990s!
Exciting news that there was a volcanic eruption on Venus in the early 1990s, shown by changes in the size of crater between two passes of the Magellan probe‘s radar over the same area. There have been hints of volcanic … Continue reading
Juno reveals Europa’s evolving surface
About a month ago, NASA’s Juno probe buzzed the Jovian moon Jupiter, and we got this cool picture, taken from a distance of about 400 km away. The grooves and ridges criss-crossing Europa’s icy shell are thought to record water from … Continue reading
Weird rocky exoplanets
Obtaining the composition of rocky exoplanets from the spectral signature produced when their dying parent star eats them is already pretty mind-blowing. But the results – which suggest that on some of these worlds, quartz is substituted for olivine in their … Continue reading
Older than the solar system
As Carl Sagan once said, “we are made of star stuff“: and here some of it is; mineral grains formed around distant suns, hundreds of millions of years before our solar system was born. These grains of silicon carbide were … Continue reading
Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.