Let's say goodbye to 2024 by highlighting some amazing space images that were released this year. They aren't just pretty — astronomers can actually study them to learn more about the universe!



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Astronomers have two main ways to calculate how fast the universe is expanding. Unfortunately, they don't agree with one another. The JWST was supposed to help solve this discrepancy, known as "The Hubble Tension" or "The Crisis in...

Hollywood (and other fictional media) loves to show people dying in outer space. And it has several go-to causes of death, on a sliding scale of accuracy. But it turns out, reality has some ways to kill you that are far stranger than...

In the mid-1990s, a meteorite with the unmemorable name ALH84001 became the most famous rock in the world. Because one team of scientists proposed that it had the evidence of real, if microscopic, Martians.



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In November 2023, NASA's Lucy spacecraft flew by the asteroid Dinkinesh and made a startling discovery: not only does this small asteroid have an even smaller companion (named Selam), that companion is shaped like a two-tier snowman....

"Water, water, every where"...or so that one poem goes. And it's kinda right, because there's way more water INSIDE the Earth than on the surface. But scientists still don't know with certainty exactly how Earth got all of that...

Perfectly packing your suitcase for a trip may require more physics and math than you think. Here's when to crumple your clothes in the bag and shove it down, iron and fold everything, or roll it up using CleanTok...

In 2024, astronomers announced they'd discovered the brightest (or, technically, the most luminous) object in the known universe. And it's a cosmic engine powered by the hungriest black hole in the known universe.



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Why do we have wisdom teeth? They're just going to come in wrong and cause problems. Wisdom teeth are a souvenir from our early human ancestors, and we actually understand less about them than you might think.



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In the 1920s, archaeologists discovered that the young pharaoh Tutankhamun was buried with a fancy iron dagger. It wasn't just fancy because part of it came from outer space; it was also made by artisans in another kingdom and given as...

In 2021, a crew of civilian astronauts spent three days in Earth orbit. While they were up there, they performed a bevy of experiments. And not only did we learn more about what space travel can do to the human body, we also learned...

Is space the “final frontier” — or the perfect place to revolutionize life on Earth? Space architect Ariel Ekblaw reveals how self-assembling structures could build orbiting real estate in space dedicated to solving humanity’s greatest...

In this video Paul Andersen shows how increasing ocean temperatures causes coral polyps to release their symbiotic algae. This process of coral bleaching decreases the availability of energy for the coral and may eventually lead to coral...

Leo Villareal is an artist, but his tools aren't paint and canvas; he manipulates light, color and computer code to create monumental works of public art. In a dazzling talk, he takes us inside his efforts to light up some of the world's...

Astrophysicist Lisa Kaltenegger explores the thrilling possibility of discovering life beyond Earth, highlighting how cutting-edge technology like the James Webb Space Telescope lets us analyze distant planets for signs of life in...

Actor and writer Natasha Rothwell takes the stage for “On the Spot,” TED’s rapid-fire Q&A format. Answering a stream of unexpected questions, she dishes on everything from creativity and representation in TV to love, the first “pinch me”...

Australia will perpetually encounter the season opposite to the one we in the northern hemisphere will encounter, so does this means that Australia will never get a white Christmas?

Allyson Felix reflects on her commitment to advancing gender equality and maternal rights, particularly in sports. She emphasizes the importance of normalizing child care at major events and advocating for better policies supporting...

The Olympics inspire dreams by showcasing athletes' dedication and passion while reminding viewers of the hard work, struggles, and triumphs behind the scenes. Beyond athletics, the Games highlight global diversity, humanizing stories...

During the 2024 Summer Olympics in Paris, retired track star Allyson Felix joined the event as a spectator. In this discussion with TED's Whitney Pennington Rodgers, Felix reflects on her transition to life after competition while...

Telegram founder Pavel Durov, a self-proclaimed free speech absolutist, faces scrutiny as his platform navigates the complexities of enabling open communication while addressing criminal misuse, including child sexual abuse material....

The recent charges against Telegram founder Pavel Durov by France, followed by similar actions from South Korea, highlight the growing tension between governments and global tech platforms. These cases underscore the challenges in...

Joel Bervell was one of the only Black students in his medical school program. After noticing how misconceptions about race were embedded in health care, he turned to social media to raise awareness about the harmful impact of biases in...

From its life-sustaining energy to its explosive geomagnetic storms, the Sun has many mysteries, says astrophysicist Nour E. Rawafi. He sheds light on NASA's latest endeavor to better understand our fiery neighbor and its impact on the...