Technologies

This Scrollable Map of the Universe Reminds Us How Tiny We Really Are

It’s a bit unsettling to scroll through this website scientists made to detail the observable universe. I highly recommend doing it.

When you open up Johns Hopkins University Professor Brice Ménard’s «map of the observable universe,» you’re met with a geometric diagram overflowing with thousands of rainbow freckles, each neatly organized by color. At the bottom of this diagram lies an unnerving phrase.

«You are here.»

One negligible, barely visible dot on this graph represents our entire Milky Way galaxy — a realm with billions of stars besides our own sun, and one we occupy such a small percentage of I don’t even want to attempt writing it out.

With a single pixel, Ménard stunningly puts into perspective the cosmic brevity of everything we’ve ever truly known as human beings.

«This map, representing galaxies just as little dots, allows the viewer to basically understand different scales at the same time,» Ménard said in an overview of the interactive mechanism. «Seeing the vastness of the universe — it’s quite inspiring.»

Scrolling around the 200,000 galaxies in the map — placed in accurate, relative positions to one another — is calming because it reframes how inconsequential the footprint we place in the universe is. It’s disturbing for precisely the same reason.

It draws a distinct parallel with Carl Sagan’s famous quote about Voyager 1’s breathtaking image of Earth from 1990, «Pale Blue Dot.»

«Look again at that dot. That’s here. That’s home. That’s us,» Sagan said. «On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every ‘superstar,’ every ‘supreme leader,’ every saint and sinner in the history of our species lived there — on a mote of dust suspended in a sunbeam.»

Though if you’re blown away by the deceptively concise magnitude of Ménard’s map, consider how it doesn’t even account for every galaxy in the universe. In reality, NASA estimates there are something like a hundred billion galaxies unfolding eternities beyond our own.

We’d need an unfathomable level of observable universe cartography to encapsulate the full breadth of the cosmos.

Slice of our universe

Along with a cadre of scientists, Ménard used data mined over two decades by what’s known as the Sloan Digital Sky Survey.

«Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries,» Ménard said. «But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like.»

Once you click «explore the map» under the Milky Way galaxy label, you arrive at a screen prompting you to «scroll up to travel through the universe.» That such a sentence even exists underscores just how far technology has come.

«From this speck at the bottom,» Ménard said, «we are able to map out galaxies across the entire universe, and that says something about the power of science.»

Even more impressive is how, as you follow the prompt, a ticker at the bottom left of the screen shows you how many billions of years back in time you’ve scrolled. Meanwhile, the dots go from gradients of pale blues to yellows to oranges to reds, ultimately retreating to a cool midnight hue.

«Each dot is a galaxy shown with its apparent color,» the page reads. «Spiral galaxies are faint and blue. Our galaxy, the Milky Way, is a blue spiral.»

Elliptical galaxies are shown as yellowish and brighter, while reddened speckles indicate realms that have grown distant enough for the light they emanate to stretch and appear to us on Earth as crimson blurs.

Further back 9 billion years, the map exhibits vivid blue spots to represent quasars rather than galaxies. These are extreme jets of light spewing out from the guts of black holes sitting at the center of certain galaxies.

Basically, it’s really hard to see galaxies from this era of cosmic history, reddened to the point of near-invisibility, but quasars are bright enough to act like flashlights. Their brilliance shines across the universe, revealing scenes otherwise shielded by darkness and softened with distance.

But beyond even those quasars lies a splotch of blackness — evocative of the mysteries lurking beyond the red end of the electromagnetic spectrum. Infrared waters.

«We encounter an epoch during which the universe is filled with hydrogen gas that prevents the propagation of visible light we could observe today. This epoch is called the «dark ages,'» the page reads.

NASA’s magnificent James Webb Space Telescope is such a big deal because it’s built to find secrets hidden in this region invisible to human eyes. Constructed with an army of high-tech infrared sensors, it’s working on detecting galaxies from near the beginning of time stuck in a limbo we cannot see with our minds or machines.

With each Webb discovery, hopefully maps like this one will become populated where their empty spaces currently sit.

And at the very, very top of the page, a marbled photo of the edge of the observable universe. The first flash of light emitted post-Big Bang, nearly 14 billion years ago. The Cosmic Microwave Background.

«We cannot see anything beyond this point,» the map concludes after you scroll back to the beginning of existence. «The light travel time to us is greater than the age of the universe.»

Technologies

Yes, This Swimming RoboTurtle Is Adorable. It Also Has an Important Environmental Mission

Beatbot is best known for making pool-cleaning robots, but it was its swimming robot turtle that won our hearts at CES 2026.

Few things in life have made me feel more privileged and awestruck than the opportunity to swim with sea turtles in their natural environment. The way in which these gentle creatures navigate through their underwater world with their deliberate and careful fin strokes is utterly mesmerizing to watch.

It’s a distinctive style of movement — so much so that when I saw Beatbot’s RoboTurtle swim across a water tank on the show floor at CES 2026, I knew that this wasn’t simply just a pool cleaner robot with turtle features tacked on. This was a studied example of biomimicry in action.

The reason for this is that the company’s engineers went on a two-month expedition to study sea turtles in their natural environment, Beatbot’s Eduardo Campo told me as we watched Turtini (the team’s affectionate nickname for RoboTurtle) splash around in its pool. «We did a lot of motion capture, like the things they use in movies, because we need to develop those joints that it has,» he said.

This isn’t RoboTurtle’s first time at CES — it also appeared in 2025 as a static concept. This is the year, however, it’s found its fins, so to speak. Not only can it swim, but it can also respond to hand gestures: I throw it an OK gesture, and it dances in response. But as cute and limber as it is, RoboTurtle is a robot with an important mission.

RoboTurtle is an environmental research tool, built with input from researchers and NGOs, which can go where humans or other machines cannot for fear of disturbing complex and delicate underwater ecosystems, particularly coral reefs. It can move silently and naturally in a way that won’t scare wildlife, monitoring water quality and fish numbers with its built-in camera.

«One of the groups that we’re working with, they want to study the coral reefs in near Indonesia,» said Campo. «There was a very big incident over there with a boat that came up onto a coral reef and it disrupted the environment, [so] they want the least intrusive robot possible.»

The group wants to deploy RoboTurtle for certain periods every year to monitor the recovery of the coral and monitor the fish population, he added. Beatbot is currently training the built-in AI to give RoboTurtle monitoring and recognition skills.

At CES, I watched RoboTurtle paddle about only on the surface of the pool, but it can also dive down up to five meters. However, it needs to resurface to send data and its GPS signal back to base, much like a real turtle that needs to come to the surface to breathe. This also gives it a chance to recharge via the solar panel on its back.

Even though I was impressed with RoboTurtle’s swimming ability, Campo estimates that the Beatbot team is still a year and a half away from perfecting its technique, with the robot ready for full deployment in between three to five years.

CES 2026 is a show where tech with a real purpose feels scarce, so it sure is refreshing to see a company use its expertise to build something designed with a sustainable future in mind. It might be a while until we see RoboTurtle take to the seas, but I’m glad that I got to witness it at this stage of its journey.

Technologies

These Tiny Robots Are Smaller Than Grains of Salt and Can Think, Move and Swim

Despite their size, the robots can navigate liquids, respond to their environment and operate without external control.

Robots smaller than a grain of salt? It sounds like science fiction, but researchers have developed autonomous microrobots that can move through liquids, sense their environment and operate independently using only light as a power source.

The microrobots, developed by researchers at the University of Pennsylvania and the University of Michigan, measure roughly 200 by 300 by 50 micrometers. Yet they can detect temperature changes, follow programmed paths and function independently for months at a time.

Their work was reported this week in two scientific journals, Science Robotics and Proceedings of the National Academy of Sciences.

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«We’ve made autonomous robots 10,000 times smaller,» senior author Marc Miskin, assistant professor in electrical and systems engineering at Penn Engineering, said in a statement. «That opens up an entirely new scale for programmable robots.»

Powered entirely by light, the robots don’t move using mechanical limbs. Instead, they generate tiny electrical fields that push ions (electrically charged particles) in fluid to create motion, an approach better suited to the unique physics of the microscopic world, where traditional motors don’t work.

Unlike earlier microrobots, these devices combine sensing, computing, decision-making and movement in a single, self-contained system at an extremely small scale.

Previous efforts in microrobotics have often relied on external controls, such as magnetic fields or physical tethers, to guide movement. These new microrobots, however, incorporate their own miniature solar cell-powered processors, allowing them to respond to their environment, communicate through patterned movements visible under a microscope and carry out tasks without outside direction.

Potential applications include monitoring biological processes at the cellular level, supporting medical diagnostics or helping assemble tiny devices. Because each robot can be mass-produced at very low cost, the technology opens new avenues for research and engineering at scales that were previously unreachable.

Technologies

Today’s NYT Mini Crossword Answers for Wednesday, Jan. 7

Here are the answers for The New York Times Mini Crossword for Jan. 7.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.

Need some help with today’s Mini Crossword? I thought today’s was a tough one — I couldn’t solve too many of the Across clues and had to move on to the Down clues to fill in the answers. Also … look at the answer for 3-Down! Are we using Gen Z slang now as if everyone knows it? Anyway, if you want all the answers, read on. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.