Tag Archives: Galaxies

Ideas: Scientific American Magazine – October 2024

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Scientific American (September 16, 2024): The October 2024 issue features ‘How To Go Back To The Moon’ – Inside NASA’s ambitious, controversial Artemis mission; The science of Empathy and Hope for Sickle Cell Disease…

Ideas: Scientific American Magazine – September 2024

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Scientific American (August 21, 2024)The September 2024 issue featuresWhat Was It Like To Be A Dinosaur? – New insights into their senses, perceptions and behaviors…

What Was It Like to Be a Dinosaur?

Illustration depicting a t-rex

New fossils and analytical tools provide unprecedented insights into dinosaur sensory perception by Amy M. Balanoff, Daniel T. Ksepka

Alone Tyrannosaurus rexsniffs the humid Cretaceous air, scenting a herd of Triceratops grazing beyond the tree line. As the predator scans the floodplain, its vision suddenly snaps into focus. A single Triceratops has broken off from the herd and wandered within striking distance. Standing motionless, the T. rex formulates a plan of attack, anticipating the precise angle at which it must intersect its target before the Triceratops can regain the safety of the herd. The afternoon silence is shattered as the predator crashes though the low branches at the edge of the forest in hot pursuit.

T. rex has hunted Triceratops in so many books, games and movies that the encounter has become a cliché. But did a scene like this one ever unfold in real life? Would T. rex identify its prey by vision or by smell? Would the Triceratops be warned by a loudly cracking branch or remain oblivious because it was unable to locate the source of the sound? Could T. rex plan its attack like a cat, or would it lash out indiscriminately like a shark?

What If We Never Find Dark Matter?

The inside of a plant facility with gray and yellow equipment

Dark matter has turned out to be more elusive than physicists had hoped by Tracy R. Slatyer, Tim M. P. Tait

Can Pulling Carbon from Thin Air Slow Climate Change?

Alec Luhn

The End of the Lab Rat?

Rachel Nuwer

New Painkiller Could Bring Relief to Millions—Without Addiction Risk

Marla Broadfoot

Can Space and Time Exist as Two Shapes at Once? Mind-Bending Experiments Aim to Find Out

Nick Huggett, Carlo Rovelli

Scientific American Magazine – July/Aug 2024

Scientific American Volume 331, Issue 1 | Scientific American

Scientific American (June 26, 2024)The July/August 2024 issue features The New Science of Health and Appetite – What humans really evolved to eat and how food affects our health today…

To Follow the Real Early Human Diet, Eat Everything

Nutrition influencers claim we should eat meat-heavy diets like our ancestors did. But our ancestors didn’t actually eat that way

People Who Are Fat and Healthy May Hold Keys to Understanding Obesity

“Heavy and healthy” can be a rare or common condition. But either way it may signal that some excess weight is just fine

Ozempic Quiets Food Noise in the Brain—But How?

Blockbuster weight-loss drugs are revealing how appetite, pleasure and addiction work in the brain

Scientific American Magazine – June 2024

Readers Respond to the February 2024 Issue | Scientific American

Scientific American (May 15, 2024)The June 2024 issue features:

Grizzly Bears Will Finally Return to Washington State. Humans Aren’t Sure How to Greet Them

BENJAMIN CASSIDY

Lifting the Veil on Near-Death Experiences

RACHEL NUWER

Scientific American Magazine – May 2024

Scientific American Volume 330, Issue 5 | Scientific American

Scientific American (April 17, 2024): The May 2024 issue features:

Fire Forged Humanity. Now It Threatens Everything

Ancient prophecies of worlds destroyed by fire are becoming realities. How will we respond?

The Secret to the Strongest Force in the Universe

New discoveries demystify the bizarre force that binds atomic nuclei together

Scientific American – February 2024 Preview

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Scientific American (January 16, 2024): The February 2024 issue features ‘The Milky Way’s Secret History’ – New star maps reveal our galaxy’s turbulent past; Why Aren’t We Made of Antimatter? – To understand why the universe is made of matter and not antimatter, physicists are looking for a tiny signal in the electron…

The New Story of the Milky Way’s Surprisingly Turbulent Past

The latest star maps are rewriting the story of our Milky Way, revealing a much more tumultuous history than astronomers suspected

Why Aren’t We Made of Antimatter?

To understand why the universe is made of matter and not antimatter, physicists are looking for a tiny signal in the electron

Tiny Fossils Reveal Dinosaurs’ Lost Worlds

Special assemblages of minuscule fossils bring dinosaur ecosystems to life

Research Preview: Science Magazine – January 5, 2024

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Science Magazine – December 21, 2023: The new issue features a carnivorous Nepenthes gracilis pitcher plant luring an ant into a precarious position under the roof-like trap lid.

Dopamine regulates attitude toward risk

Specific brain pathways can lower or raise the willingness of monkeys to take risks

Magellanic cloud may be two galaxies, not one

Rethink of familiar object may boost odds that its name, offensive to some, will be changed

Cover Preview: Scientific American – December 2022

December 2022

Scientific American – Inside the December 2022 issue:

How JWST Is Changing Our View of the Universe

The James Webb Space Telescope has sparked a new era in astronomy

JWST’s First Glimpses of Early Galaxies Could Break Cosmology

The James Webb Space Telescope’s first images of the distant universe shocked astronomers. Is the discovery of unimaginably distant galaxies a mirage or a revolution?

How Taking Pictures of ‘Nothing’ Changed Astronomy

Deep-field images of “empty” regions of the sky from JWST and other space telescopes are revealing more of the universe than we ever thought possible

Astronomy: James Webb Telescope First Images

The first images from the James Webb Space telescope have been revealed. Incredibly clear images of the Carina Nebula, the Eight-Burst Nebula, a galaxy cluster called Stephan’s Quintet and an exoplanet named WASP-96b make up the first set of science data from JWST.

Science: Galaxies Without Dark Matter, High Helium Levels, Solar Energy Jump

Dark matter makes up most of the matter in the Universe, and is thought to be needed for galaxies to form. But four years ago, astronomers made a perplexing, and controversial discovery: two galaxies seemingly devoid of dark matter. 

This week the team suggests that a cosmic collision may explain how these, and a string of other dark-matter-free galaxies, could have formed.

Research article: van Dokkum et al

News and Views: Giant collision created galaxies devoid of dark matter

08:39 Research Highlights

How fossil fuel burning has caused levels of helium to rise, and a high-efficiency, hybrid solar-energy system.

Research Highlight: Helium levels in the atmosphere are ballooning

Research Highlight: Flower power: ‘Sunflower’ system churns out useful energy

10:49 Researchers experiences of the war in Ukraine

We hear the stories of scientists whose lives have been affected by Russia’s invasion of Ukraine, including researchers who have become refugees, soldiers and activists in the face of a horrifying conflict.

Nature Feature: How three Ukrainian scientists are surviving Russia’s brutal war

20:46 Imaging the black hole at the centre of the Milky Way

Last week, a team of researchers released an image of Sagittarius A*, the supermassive blackhole at the centre of our galaxy. We hear how they took the image and what it is revealing about these enormous objects.

Nature News: Black hole at the centre of our Galaxy imaged for the first time