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Plants & Animals 48 minutes ago

Chickadees have unique neural 'barcodes' for memories of stashing away food

Black-capped chickadees have extraordinary memories that can recall the locations of thousands of morsels of food to help them survive the winter. Now scientists at Columbia's Zuckerman Institute have discovered how the chickadees ...

Space Exploration Mar 27, 2024

Looking at a solar eclipse can be dangerous without eclipse glasses. Here's what to know

Millions of people along a narrow band in North America will look up when the sky darkens during a total solar eclipse on April 8. When they do, safety is key.

Astronomy Mar 27, 2024

New analysis reveals a tiny black hole repeatedly punching through a larger black hole's disk of gas

At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups. Astronomers from MIT, Italy, the Czech Republic, and elsewhere have found that a previously quiet black hole, which sits ...

Astronomy Mar 27, 2024

'Cosmic cannibals' expel jets into space at 40% speed of light

For the first time, astronomers have measured the speed of fast-moving jets in space, crucial to star formation and the distribution of elements needed for life.

Astronomy Mar 27, 2024

The most complete portrait of a supernova ever

Accounts of supernovae—exploding stars—go back thousands of years, and while we know today these events create the building blocks of life itself, there are still unanswered questions about the conditions that cause a ...

Astronomy Mar 27, 2024

Astronomers unveil strong magnetic fields spiraling at the edge of Milky Way's central black hole

A new image from the Event Horizon Telescope (EHT) collaboration—which includes scientists from the Center for Astrophysics | Harvard & Smithsonian (CfA)— has uncovered strong and organized magnetic fields spiraling from ...

Astronomy Mar 26, 2024

Sleeping supermassive black holes awakened briefly by shredded stars

A new investigation into an obscure class of galaxies known as Compact Symmetric Objects, or CSOs, has revealed that these objects are not entirely what they seem. CSOs are active galaxies that host supermassive black holes ...

General Physics Mar 25, 2024

Entanglement entropies of nuclear systems found to grow as the volume of those systems

Entanglement is what Einstein called "spooky action at a distance." It is a key part of what distinguishes quantum mechanics from our everyday experience. In quantum mechanics, scientists use a measurement called entanglement ...

Astronomy Mar 25, 2024

Modeling M87's jet: Why do black hole jets shine and pierce the cosmic sky?

An international team led by Dr. Yuan Feng from Shanghai Astronomical Observatory of the Chinese Academy of Sciences has investigated the validity of the two main models of black hole jets by calculating the radiation predicted ...

Other Mar 23, 2024

Saturday Citations: An anemic galaxy and a black hole with no influence. Also: A really cute bug

If you missed some of our top stories this week, we have you covered. From an underachieving black hole to a new species of fluffy beetle, you can see it all here.

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