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Da Vinci’s forgotten experiments explored gravity as a form of acceleration
Engineers from Caltech have discovered that Leonardo da Vinci’s understanding of gravity—though not wholly accurate—was centuries ahead of his time. In an article published in the journal Leonardo, the...
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Scientists Unveil a 5.7 Terapixel Global Image of Mars
A planet-spanning online image of Mars created at a scale of 5 meters per pixel was unveiled today. The image is freely available to the public and can be accessed online through Caltech’s Bruce Murray...
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A New Mechanism for Crossing the Blood–Brain Barrier
The blood–brain barrier (BBB) is a stringent, nearly impenetrable layer of cells that guards the brain, protecting the vital organ from hazards in the bloodstream such as toxins or bacteria and...
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Quantum Entanglement of Photons Doubles Microscope Resolution
In a paper appearing in the journal Nature Communications, a team led by Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, shows the achievement of a leap forward in...
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Star Eats Planet, Brightens Dramatically
For the first time, astronomers have caught a star in the act of swallowing a planet whole. The sun-like star, called ZTF SLRN-2020, lies about 12,000 light-years away in our galaxy and is thought to...
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New Method Uses Sound Waves for Storing Quantum Information
Quantum computing, like regular computing, requires a way to store the information it uses and processes. Just as the computer you’re currently using stores photos, reminders, and text, quantum...
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Scientists find evidence for slow-rolling sea of gravitational waves
Scientists from the University of Cambridge have detected evidence of a background of gravitational waves, providing the first confirmation of their existence in our Earth and the universe. The...
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How Fish Evolved Their Bony, Scaly Armor
New research conducted by Jan Stundl and his colleagues has identified a specific population of stem cells called trunk neural crest cells that are responsible for the development of bony scutes in...
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Better Energy Harvesting with ‘Law-Breaking’ Device
If you take an object and set it out in the sun, it will begin to warm up. This is because it is absorbing energy from the sun’s rays and converting that energy to heat. If you leave that object...
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New Vaccine Technology Produces More Antibodies Against SARS-CoV-2 in Mice
A new technology developed at Caltech is designed to make more potent vaccines, beginning with SARS-CoV-2 (the virus that causes COVID-19). In mouse studies, the prototype vaccine elicited five times...
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The Lunar Alarm Clock: New Study Characterizes Regular Moonquakes
Every morning and afternoon, like clockwork, the surface of the Moon trembles with tiny “moonquakes.” Now, new analysis of seismic activity on the Moon has characterized these events and discovered...
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Methane Emissions in LA are Decreasing More Slowly than Previously Estimated
Methane is a powerful greenhouse gas, 80 times more potent at warming the atmosphere than carbon dioxide. In 2014, a California law required statewide methane emissions to be cut by 40 percent by 2030...
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Cosmic Web Lights Up in the Darkness of Space
Like rivers feeding oceans, streams of gas nourish galaxies throughout the cosmos. But these streams, which make up a part of the so-called cosmic web, are very faint and hard to see. While...
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A new way to erase quantum computer errors
Quantum computers of the future hold promise in solving all sorts of problems. For example, they could lead to more sustainable materials, new medicines, and even crack the hardest problems in...
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California Supervolcano is Cooling Off but May Still Cause Quakes
Since the 1980s, researchers have observed significant periods of unrest in a region of California’s Eastern Sierra Nevada mountains characterized by swarms of earthquakes as well as the ground...
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Unraveling Caulerpa’s Growth Mysteries: Insights into a Single-Cell Algae’s...
Caulerpa, a unique type of marine algae, is a single extended cell but can expand to a meter in size. Unlike typical plants made of multiple cells with defined tasks, Caulerpa lacks cell membranes...
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Researchers Unveil Elusive HIV Protein Structure, Paving the Way for Targeted...
The human immunodeficiency virus (HIV) is a formidable pathogen. It mutates rapidly; in fact, estimates suggest that the genetic diversity of HIV in a single person at one point in time is equal to...
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Conjoined “Racetracks” Make New Optical Device Possible
When we last checked in with Caltech’s Kerry Vahala three years ago, his lab had recently reported the development of a new optical device called a turnkey frequency microcomb that has applications in...
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A New Way to Characterize Habitable Planets
For decades, science fiction authors have imagined scenarios in which life thrives on the harsh surfaces of Mars or our Moon, or in the oceans below the icy surfaces of Saturn’s moon Enceladus and...
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Meteorite Analysis Shows Earth’s Building Blocks Contained Water
When our Sun was a young star, 4.56 billion years ago, what is now our solar system was just a disk of rocky dust and gas. Over tens of millions of years, tiny pebbles of dust coalesced, like a...
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