Presence

Presence

gravitational wave effects on spacetime
We've now detected hundreds of gravitational waves with LIGO, Virgo, and KAGRA. What if we tried Weber's original method in the modern day?
A field of galaxies in deep space, featuring a bright spiral galaxy at the lower right with a stellar stream escaping the galaxy, and a large, bright red star at the upper left.
Stellar streams are faint trails of stars that appear to "stream" out of galaxies. A new one, escaping galaxy M61, may point to many others.
Aerial view of two groups of people waiting in line and walking on a paved surface, casting long shadows in the sunlight.
In this excerpt from "Lucky By Design," Judd Kessler explains how opportunity costs shape our choices and why time is the real price we pay.
Since the time of Galileo, Saturn's rings have remained an unexplained mystery. A new idea may have finally solved the longstanding puzzle.
From the vastness of space, Earth at night reveals its exo-earth beauty, with illuminated continents showcasing a tapestry of lights across North and South America. Major cities and regions emerge from the glowing darkness, painting a vivid picture against the backdrop of oceans.
In 2025, Earth remains the only planet where life is known to exist. Without a second example, "The Stand" has a vital lesson to teach us.
From here on Earth, looking farther away in space means looking farther back in time. So what are distant Earth-watchers seeing right now?
An abstract illustration featuring an orange star partially overlapped by angular blue and maroon shapes against a light gray background.
Members
Effective leaders demonstrate self-awareness, credibility, and integrity, which not only enhance their persuasive abilities and business growth but also significantly influence the trust others place in them, as noted by economist Sylvia Ann Hewlett.
A man in a suit holding a cup stands against a contrasting background of blue sky with clouds and a dark, textured area with light streaks.
Members
This class, featuring insights from experts like Amy Cuddy and Sylvia Ann Hewlett, explores the concept of presence in communication and leadership, offering strategies to enhance executive presence, build confidence, and effectively manage performance anxiety for professional success.
Abstract illustration of a red human silhouette with the top of the head open and white shapes emerging, set against a dark background with vertical stripes.
Members
This class, led by experts like Lisa Lampanelli and Amy Cuddy, teaches essential communication skills for authentic audience connection, focusing on storytelling, self-awareness, and adapting to diverse perspectives in today's multicultural workplace.
black hole
All of the matter that we measure today originated in the hot Big Bang. But even before that, and far into the future, it'll never be empty.
planck temperature polarization
The hot Big Bang is often touted as the beginning of the Universe. But there's one piece of evidence we can't ignore that shows otherwise.
A young girl with light brown hair sits with her knees drawn up, looking down, illustrated blue teardrops on her face—capturing a quiet moment that reflects why humans cry.
In this excerpt from "When Everyone Knows That Everyone Knows...," Steven Pinker examines how crying may have evolved as part of a suite of emotional expressions aimed at strengthening social bonds.
As we gain new knowledge, our scientific picture of how the Universe works must evolve. This is a feature of the Big Bang, not a bug.
Mars rover on rocky terrain, showing its camera mast, equipment, and six wheels against a dusty, reddish Martian landscape.
Organic compounds can form through simple chemistry alone — making the search for true biosignatures trickier than it seems.
LIGO Livingston
10 years ago, LIGO first began directly detecting gravitational waves. Now better than ever, it's revealing previously unreachable features.
Two large Martian rocks with circular drill holes and light-colored dust are shown on a sandy, rocky surface. Part of a rover’s equipment, searching for traces of organics or signs of Mars life, is visible at the bottom of the image.
The red planet, Mars, may once have been teeming with life, just as Earth is today. Finding "organics" on Mars, however, doesn't mean life.
A dense star field with dark, irregular dust clouds—where cosmic dust come from—obscures parts of the glowing stars in the Milky Way.
Dust is ubiquitous in the modern Universe, appearing in nearly all galaxies. But our cosmos was born dust-free. So where does it originate?
A dark, rocky planet orbits in space with the sun illuminating its edge, surrounded by stars and distant cosmic clouds.
The most common type of exoplanet is neither Earth-sized nor Neptune-sized, but in between. Could these haze-rich worlds house alien life?
Book cover of "Facing Infinity: Black Holes and Our Place on Earth" by Jonas Enander, exploring the mysteries priest black holes hold, next to the text "an excerpt from" on a split blue and beige background.
In this excerpt from "Facing Infinity," Jonas Enander examines how John Michell conceived of "dark stars," or massive bodies with enough gravity to trap light, all the way back in 1783.
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 open book, symbolizing dangerous books, burns with flames rising from its pages against a black background, its fiery reflection shimmering on a glossy surface.
In "That Book Is Dangerous," author Adam Szetela examines the rise of the “Sensitivity Era” in publishing and how outrage campaigns try to control what books authors can write and readers can read.
Book cover of "The Story of CO2 Is the Story of Everything" by Peter Brannen, featuring themes like fire and human evolution, alongside the text “an excerpt from” on a light blue background.
In this excerpt from "The Story of CO2," Peter Brennan explains how changes in the Earth's ecosystem led to fire, which in turn led our ancestors to become the "fire apes."
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 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?
There could be variables beyond the ones we've identified and know how to measure. But they can't get rid of quantum weirdness.
A man and woman sit on a bed with two young children, sharing a quiet moment; the older child stands while the younger, cradled by the woman, embodies the precious gift of consciousness within the family.
After the trauma of a high-risk medical procedure, Eric Markowitz discovered a kind of consciousness that lives not in thought — but in presence.
The Universe was born incredibly hot, and has expanded and cooled ever since. Could life have begun back when space was "room temperature?"
A person in a suit holds up a NOAA map showing the forecast track and intensity of Hurricane Dorian, reminding us that, unlike Einstein, we can't change the facts—only prepare for them—in an office setting.
Einstein is credited with saying, "If the facts don't fit the theory, change the facts." What he actually said has a very different meaning.
An image of an ancient black hole
At the center of Hubble's famous "cosmic horseshoe," a very heavy supermassive black hole has been robustly measured. How is it possible?
A dark, rocky planet orbits in space with the sun illuminating its edge, surrounded by stars and distant cosmic clouds.
In the search for life in the Universe, the ultimate goal is to find an inhabited planet beyond Earth. How will we know when we've made it?