The asteroid that ended the dinosaurs struck what is now Mexico with such force that it blasted molten ejecta high above the atmosphere before it rained back down across the planet, and many of the survivors were small, sheltered creatures — including early mammals on the line that would eventually lead to us.

About 66 million years ago, an asteroid roughly 10 to 15 kilometres across struck the shallow sea covering what is now the Yucatan Peninsula in Mexico.

By Space Daily Editorial Team · May 24, 2026

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A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

Most animals develop in one direction. An egg becomes a juvenile, a juvenile becomes an adult, the adult ages, and at some point it dies.

By Space Daily Editorial Team · May 24, 2026

Constellations

Atomic oxygen in low Earth orbit slowly eats spacecraft surfaces, and the ISS survives because engineers learned to coat, test, and replace the materials most vulnerable to it

Roughly 400 kilometres above Earth, the International Space Station is flying through a kind of invisible chemical weather.

By Space Daily Editorial Team · May 24, 2026

Constellations

The Vela satellites were built to catch secret nuclear tests, but they accidentally recorded flashes from deep space that opened a new branch of astrophysics

The Vela satellites were not built to study stars. They were built to watch for nuclear weapons.

By Space Daily Editorial Team · May 24, 2026

Space Industry

Webb just clocked nearly 9,000 young star clusters and found the biggest ones break from their birth clouds in 5 million years, a timing clue that could reshape how astronomers model galaxies growing up

The James Webb Space Telescope has given astronomers a sharper look at how young star clusters escape their birthplaces, and the result cuts against the simple intuition that smaller clusters should clear out faster.

By Space Daily Editorial Team · May 24, 2026

Constellations

The Hubble Deep Field began as a gamble on a tiny patch of sky that had been chosen because it looked almost empty, and it ended by revealing nearly 3,000 galaxies hiding in what seemed like nothing.

In December 1995, the Hubble Space Telescope spent ten days staring at a small, deliberately unremarkable patch of sky.

By Space Daily Editorial Team · May 24, 2026

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The asteroid that ended the dinosaurs struck what is now Mexico with such force that it blasted molten ejecta high above the atmosphere before it rained back down across the planet, and many of the survivors were small, sheltered creatures — including early mammals on the line that would eventually lead to us.

By Space Daily Editorial Team

Science

A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

By Space Daily Editorial Team

Constellations

The Hubble Deep Field began as a gamble on a tiny patch of sky that had been chosen because it looked almost empty, and it ended by revealing nearly 3,000 galaxies hiding in what seemed like nothing.

By Space Daily Editorial Team

Constellations

Titan’s atmosphere is thicker than Earth’s, its rivers and lakes are made of methane and ethane, and NASA is sending a nuclear-powered drone there because on Saturn’s largest moon, flying may be easier than driving.

By Space Daily Editorial Team

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Science

The asteroid that ended the dinosaurs struck what is now Mexico with such force that it blasted molten ejecta high above the atmosphere before it rained back down across the planet, and many of the survivors were small, sheltered creatures — including early mammals on the line that would eventually lead to us.

By Space Daily Editorial Team

Science

A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

By Space Daily Editorial Team

Science

In 1908, something exploded in the sky over Siberia with hundreds of times the energy of the Hiroshima bomb, flattening more than 2,000 square kilometres of forest. When scientists finally reached the site years later, they found no crater at all

By Space Daily Editorial Team

Science

The human genome contains traces of ancient viruses that infected our ancestors millions of years ago — and some of those viral leftovers were later repurposed into genes that help make human pregnancy possible

By Space Daily Editorial Team

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Space, science, and the human side of the frontier. Since 1995.

Space Daily is an independent publication covering three connected beats: the space industry, the science behind it, and the psychology of ambition, isolation, and meaning under extremes. Founded in Tokyo in 1995, we’ve built a thirty-year archive of rigorous reporting on the people, missions, and ideas pushing humanity outward — and on the human dynamics shaped by frontier life. The same ambitions, pressures, and patterns of mind that drive humanity to the stars also shape how we live on Earth. We employ modern AI technologies to support our editorial workflows; every published piece is editorially directed and reviewed.

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A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

Atomic oxygen in low Earth orbit slowly eats spacecraft surfaces, and the ISS survives because engineers learned to coat, test, and replace the materials most vulnerable to it

The Vela satellites were built to catch secret nuclear tests, but they accidentally recorded flashes from deep space that opened a new branch of astrophysics

Webb just clocked nearly 9,000 young star clusters and found the biggest ones break from their birth clouds in 5 million years, a timing clue that could reshape how astronomers model galaxies growing up

The Hubble Deep Field began as a gamble on a tiny patch of sky that had been chosen because it looked almost empty, and it ended by revealing nearly 3,000 galaxies hiding in what seemed like nothing.

A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

The Hubble Deep Field began as a gamble on a tiny patch of sky that had been chosen because it looked almost empty, and it ended by revealing nearly 3,000 galaxies hiding in what seemed like nothing.

Titan’s atmosphere is thicker than Earth’s, its rivers and lakes are made of methane and ethane, and NASA is sending a nuclear-powered drone there because on Saturn’s largest moon, flying may be easier than driving.

A tiny jellyfish can reverse its own life cycle when injured or starving, turning back into its younger self instead of dying of old age like everything else

In 1908, something exploded in the sky over Siberia with hundreds of times the energy of the Hiroshima bomb, flattening more than 2,000 square kilometres of forest. When scientists finally reached the site years later, they found no crater at all

The human genome contains traces of ancient viruses that infected our ancestors millions of years ago — and some of those viral leftovers were later repurposed into genes that help make human pregnancy possible

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