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2022-11-16 18:00:21 NASA shared their first photos of the Artemis I launch
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2022-11-16 17:35:55 SLS and Artemis 1 lifting off LC-39B
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2022-11-16 17:17:18 Launch!

The NASA SLS rocket and Orion spacecraft launched the Artemis I test flight to the Moon from Kennedy’s Launch Complex 39B earlier today.

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2022-11-08 00:07:53 Atmosphere of excitement as Europe’s JWST astronomers study climate on other planets
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2022-11-01 03:19:10 Solar eclipse up close

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2022-10-27 00:36:02 New technique for decoding people's thoughts can now be done from a distance

Past mind-reading techniques relied on implanting electrodes deep in peoples' brains. The new method, described in a report posted 29 Sept. to the preprint database bioRxiv, instead relies on a noninvasive brain scanning technique called functional magnetic resonance imaging (fMRI).

fMRI tracks the flow of oxygenated blood through the brain, and because active brain cells need more energy and oxygen, this information provides an indirect measure of brain activity.

By its nature, this scanning method cannot capture real-time brain activity, since the electrical signals released by brain cells move much more quickly than blood moves through the brain.

But remarkably, the study authors found that they could still use this imperfect proxy measure to decode the semantic meaning of people's thoughts, although they couldn't produce word-for-word translations.

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2022-10-26 18:34:28 During sleep, one brain region teaches another, converting novel data into enduring memories

In research published in the Proceedings of the National Academy of Sciences, they show that as the brain cycles through slow-wave and rapid-eye movement (REM) sleep, which happens about five times a night, the hippocampus teaches the neocortex what it learned, transforming novel, fleeting information into enduring memory.

This is not just a model of learning in local circuits in the brain. It's how one brain region can teach another brain region during sleep, a time when there is no guidance from the external world," says Schapiro, an assistant professor in Penn's Department of Psychology. "It's also a proposal for how we learn gracefully over time as our environment changes."

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2022-10-25 16:07:39 ‍The International Space Station had to burn thrusters for more than 5 minutes on Monday night to avoid a chunk of debris from the satellite Russia shot down in November.
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2022-10-23 18:49:38 Pillars of Creation (NIRCam)

The Pillars of Creation are set off in a kaleidoscope of color in NASA’s James Webb Space Telescope’s near-infrared-light view. The pillars look like arches and spires rising out of a desert landscape, but are filled with semi-transparent gas and dust, and ever changing. This is a region where young stars are forming – or have barely burst from their dusty cocoons as they continue to form.

Newly formed stars are the scene-stealers in this Near-Infrared Camera (NIRCam) image. These are the bright red orbs that sometimes appear with eight diffraction spikes. When knots with sufficient mass form within the pillars, they begin to collapse under their own gravity, slowly heat up, and eventually begin shining brightly.

Along the edges of the pillars are wavy lines that look like lava. These are ejections from stars that are still forming. Young stars periodically shoot out supersonic jets that can interact within clouds of material, like these thick pillars of gas and dust. This sometimes also results in bow shocks, which can form wavy patterns like a boat does as it moves through water. These young stars are estimated to be only a few hundred thousand years old, and will continue to form for millions of years.


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2022-10-23 18:27:40 If this majestic landscape looks familiar, you may recognize the original. Here, Hubbles’s iconic view, taken in visible light, is on the left. Webb “sees” in infrared light invisible to our eyes, allowing it to pierce through the dust and reveal stars galore (right).

‍Why go back to where we’ve been before? Webb’s new look identifies far more precise counts of newborn stars, along with the quantities of gas and dust. This will help us build a clearer understanding of how stars form and burst out of these dusty clouds over millions of years.

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