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Using Entanglement to See Inside Nuclei

Researchers at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory in the U.S. have successfully tested a new way of peeking into atomic nuclei. Rather than trying to figure out directly what goes on, they measure photons that have become entangled with gluons in the nuclei. This method might help us better understand how nuclei hold together and develop behaviors and properties such as spin or magnetic moments. Press release here. Paper here.

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A Map of Volcanoes on Venus

Two planetary scientists from Washington University in St. Louis used radar data from NASA’s Magellan mission to create a map of volcanoes on Venus. There are a staggering 85,000 of them. Press release here, paper here, database here.

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Methane Just Got More Complicated

Methane is a greenhouse gas, right? Yes, right. But a new study now argues that methane also leads to the creation of clouds, and that process offsets a small part of the heating from the methane. This finding needs to be confirmed by other studies, but it highlights that climate science is far from done and dusted. Press release here, paper here.

Comments

Anonymous

Very interesting, and a nice entanglement picture, who designed it?

Anonymous

I recall that there were hints of active volcanism way back when Venus was being mapped by the Magellan mission. As they pieced individual mappings together to make the composite surface image, a few places had noticeable changes from one map to the other. Although active volcanism was suspected at the time (in addition to mudslides and other non-volcanic reasons for changes in topography), no one thought that Venus had _significant_ ongoing volcanic activity because it doesn't have a global magnetic field. Earth's global magnetic field arises due to a dynamo in the liquid outer core -- liquid because the center of the Earth is a hot as the surface of the Sun and the lower pressure in the outer core (as compared to the inner core) allows melting. Volcanism on Earth is a byproduct of plate tectonics which is driven by large-scale convection cells in the solid, ductile mantle because convection is the most efficient means of transporting the heat from the core to the surface. If Venus has only a little bit of active volcanism due to relic magma pockets left over from its hot past, that would make sense. However, if Venus has significant ongoing volcanism, that would be a real pickle because it should have no ongoing plate tectonic activity. This cataloging of volcanoes is crucial for comparison to planned future mapping missions in order to see how active Venus' surface is and whether tectonic activity is still happening inside of Venus.

Anonymous

I was amazed at the map with all these pimples spread over the surface. Thought vulcanism stopped there million years ago. Had learned that it's a mystery, how the planet's core looses it's heat.

Anonymous

Wow, that's amazing, just checked it out. After your video about chatbots I told my son about it, he's graphic-designer and explained, that AI is changing image-creation quite fast, then created a picture of my wish in a few minutes on his laptop. Thank you