Science & Tech

Science & Tech

Explore the discoveries that reveal how the world works, alongside the technologies that extend, reshape, and sometimes challenge what’s possible.

Compton gamma-ray observatory deployment
Across all wavelengths of light, the Sun is brighter than the Moon. Until we went to the highest energies and saw a gamma-ray surprise.
An artist's rendering of the nasa jupiter spacecraft.
The Juno spacecraft, orbiting and imaging Jupiter since 2016, is still succeeding. Without a further extension, the mission now faces death.
A world map comparing landmass outlines of the Equal Earth projection in pink and Mercator projection in green, with grid lines overlaid.
The African Union argues that the Mercator projection distorts the continent, both in size and global attention.
An artist's impression of a cluster of stars.
With several seemingly incompatible observations, cosmology faces many puzzles. Could early, supermassive stars be the unified solution?
As we look to larger cosmic scales, we get a broader view of the expansive cosmic forest, eventually revealing the grandest views of all.
a red and orange abstract background with lines.
Explanations for the cosmic speed limit often conflate mass with inertia.
A man sits on a chair in a photo studio, flanked by black-and-white illustrations of an early human ancestor on the left and a modern man running on the right.
1hr 13mins
“Nothing about human behavior makes sense except in the light of culture and in anthropology, and we need to understand the cultural component to our behaviors as well.”
An abstract animation of white, textured patterns symmetrically forming on a blue and black background evokes the mysterious dance of dark energy, subtly hinting at its weakening presence as if guided by the precision of DESI.
The Universe isn't just expanding; the expansion is accelerating. If different methods yield incompatible results, is dark energy evolving?
Two diagrams: the left shows a complex, circular, multicolored network; the right displays a theoretical physics diagram with labeled axes and colored particle symbols, capturing the intricate nature of physics hard concepts.
When you don't have enough clues to bring your detective story to a close, you should expect that your educated guesses will all be wrong.
A chart titled "Masses in the Stellar Graveyard" shows the black holes and neutron stars detected by LIGO-Virgo-KAGRA, plotted on a logarithmic scale in solar masses, highlighting how LIGO triples black hole haul with each new discovery.
10 years ago, LIGO saw its first gravitational wave. After 218 detections, our view of black holes has changed forever. Can this era endure?
Technical drawing of an oval-shaped mechanical object with measurements and annotations, overlaid with orange scribble lines, subtly hinting at themes of colonial propaganda.
In this excerpt from "Tales of Militant Chemistry," Alice Lovejoy exposes how the need for uranium during WWII led the Allied governments to turn a blind eye to colonial exploitation.
Illustrated map showing streets, parks, and landmarks of a coastal city bordered by Hob's River and Delaware Bay, with a compass rose in the lower right corner.
The latest "Superman" film sets Metropolis in the First State.
A grainy black and white image shows SPHEREx comet 3I/ATLAS gleaming at the center, surrounded by stars appearing as streaks due to long exposure.
Designed to map galaxies, the SPHEREx mission's first science result is instead about interstellar interloper 3I/ATLAS. No, it's not aliens.
Four images of a nebula, sculpted by a dead star, are shown side by side in radio, optical, and X-ray wavelengths; the fourth composite image reveals the so-called "Hand of God." Each is labeled at the bottom.
In our own Milky Way, a recently deceased star creates a ghostly, hand-like shape in X-rays some 150 light-years wide. Here's how it's made.
A man in a suit sits on a chair against a yellow background with abstract blue and green wave patterns behind him.
1hr 26mins
“I like to say that physics is hard because physics is easy, by which I mean we actually think about physics as students.”
A 3D potential energy surface with a central peak and surrounding valley illustrates zero-point energy power; two blue spheres indicate positions atop the peak and within the valley. Axes labeled Re(φ), Im(φ), and V(φ).
Throughout history, "free energy" has been a scammer's game, such as perpetual motion. But with zero-point energy, is it actually possible?
A small, irregular brown stone with holes—possibly linked to Denisovans—is shown next to a 1990 U.S. dime for size comparison.
In “The Secret History of Denisovans,” Silvana Condemi and François Savatier trace the story of our mysterious hominin ancestor.
There could be variables beyond the ones we've identified and know how to measure. But they can't get rid of quantum weirdness.
Abstract collage with a butterfly, brain sketches, graphs, and scientific diagrams overlaid with red, black, and beige shapes and textured patterns.
A conversation with neuroscientist Erik Hoel about the future of consciousness research.
Abstract illustration featuring five circles with various designs connected by curved white lines on a purple and blue background, symbolizing science or interconnected concepts.
A conversation with Annaka Harris on shared perception, experimental science, and why our intuition about consciousness is wrong.